n. [ L. acer sharp + olēre to smell. ] (Chem.) A limpid, colorless, highly volatile liquid, obtained by the dehydration of glycerin, or the destructive distillation of neutral fats containing glycerin. Its vapors are intensely irritating. Watts. [ 1913 Webster ]

a. Like a prickle. [ 1913 Webster ]

a. [ Azo- + oleic. ] (Chem.) Pertaining to an acid produced by treating oleic with nitric acid. [ R. ] [ 1913 Webster ]

a. Of or relating to Bishop Berkeley or his system of idealism; as, Berkeleian philosophy. -- Berke"ley*ism, n. [1913 Webster]

{ } n. 1. A short sled, mostly used as one of a pair connected by a reach or coupling; also, the compound sled so formed. [ U. S. ] [ 1913 Webster ]

The long wagon body set on bobsleds. W. D. Howells. [ 1913 Webster ]

2. a long racing sled (for 2 or more people), having two pairs of runners, with the front pair connected to a steering mechanism. They are usually raced one at a time down a steeply sloping path or specially constructed chute, with sharp banked curves, and attain high speeds.
Syn. -- bobsled. [ WordNet 1.5 +PJC ]

a. Of or pertaining to Sir Thomas Bodley, or to the celebrated library at Oxford, founded by him in the sixteenth century. [ 1913 Webster ]

n. [ Cf. F. brésiline. See 2d Brazil. ] (Chem.) A substance, C16H14O5, extracted from brazilwood as a yellow crystalline powder which is white when pure. It is colored intensely red by alkalies on exposure to the air, being oxidized to C16H12O5, to which brazilwood owes its dyeing properties. [ Webster 1913 Suppl. ]

n. [ L. caeruleus sky-blue. ] (Chem.) A fast dyestuff, C20H8O6, made by heating gallein with strong sulphuric acid. It dyes mordanted fabrics green. [ Webster 1913 Suppl. ]

a. (Physiol. Chem.) Pertaining to, or obtained from, bile; as, choleic acid. [ 1913 Webster ]

a. [ Pref. cis- + Leitha. ] On the Austrian side of the river Leitha; Austrian. [ 1913 Webster ]

n. the closed spore-bearing structure of some fungi (especially Aspergillaceae and Eurysiphaceae) from which spores are released only by decay or disintegration; -- called also cleistothecium.
Syn. -- cleistothecium. [ WordNet 1.5 ]

{ a. [ Gr. &unr_; closed (fr. &unr_; to shut) + ga`mos marriage. ] (Bot.) Having, beside the usual flowers, other minute, closed flowers, without petals or with minute petals; -- said of certain species of plants which possess flowers of two or more kinds, the closed ones being so constituted as to insure self-fertilization. Darwin. [ 1913 Webster ]

n. the closed spore-bearing structure of some fungi (especially Aspergillaceae and Eurysiphaceae) from which spores are released only by decay or disintegration; -- called also cleistocarp.
Syn. -- cleistocarp. [ WordNet 1.5 ]

n. a nucleic acid, usually of very high molecular weight, consisting of a linear sequence of monomer units of deoxyribonucleotides, occurring in most organisms in pairs of strands, wound together in the form of a double helix; it is the main component of chromosomes and contains the genetic information which is the basis of heredity, transmitted from parent to progeny, and found in all living organisms except for certain viruses which have RNA as their basic genetic material; -- usually referred to by the acronym DNA.
Syn. -- DNA, desoxyribonucleic acid. [ PJC ]

☞ The monomer units making up the DNA each contain one of four heterocyclic bases: thymine, adenine, cytosine, or guanine. The genetic information is contained in the precise sequence of these monomer units, which ultimately specify the sequence of proteins to be made by the organism's biosynthetic processes, mediated through the synthesis of RNA having a base sequence corresponding to that of the DNA. The DNA sequence also specifies the sequence of the various RNA molecules the RNA base sequence being a copy of that on one of the DNA strands. Most of the RNA synthesized is involved in protein synthesis. In the double-helical form of DNA, the thymine on one strand is paired with the adenine on the opposite strand, and cytosine of one strand is paired with guanine on the opposite strand. There is in DNA also certain controlling information concerning the timing and amount of RNA to be made, encoded within the sequence of the DNA in ways that are still being elucidated.
When this structure is replicated in the course of cell multiplication, two identical double-helical molecules are formed, each containing one strand from the original molecule. Each resulting molecule is distributred to either the parent or progeny organism, and this is the basic mechanism for transmission of hereditary information. In RNA-based viruses, or those having single strands of DNA (as certain viruses), the genetic information transmission occurs through a double-stranded intermediate by a similar mechanism.
In some organisms slight modifications of the bases of DNA are found, such as methylcytosine or, in some viruses, uracil or hydroxymethyluracil; these unusual bases act analogously to the normal bases in their genetic coding function. A small percentage of methylcytosine is found in many organisms, and it serves in some cases as a special signal, as for restriction enzymes. [ PJC ]

n. same as deoxyribonucleic acid. [ Rare ] [ PJC ]

n. same as deoxyribonucleic acid. [ PJC ]

n. [ Gr. &unr_; double + &unr_; image + -scope. ] (Astron.) An instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is on the meridian. [ 1913 Webster ]

n. (Biol.) Lifeless matter deposited in the form of minute granules within the protoplasm of living cells. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'epi` upon + &unr_; a little key. ] (Anat.) A projection, formed by a separate ossification, at the scapular end of the clavicle of many birds. [ 1913 Webster ]

a. [ Gr. 'eryqro`s red + L. oleum oil. ] (Chem.) Having a red color and oily appearance; -- applied to a purple semifluid substance said to be obtained from archil. [ 1913 Webster ]

n. [ See Erythroleic. ] (Chem.) A red substance obtained from litmus. [ 1913 Webster ]

n. (Chem.) A white crystalline alkaloid, extracted from sassy bark (Erythrophleum Guineense).

obs. imp. of Fly. Chaucer. [ 1913 Webster ]

‖n. sing. & pl. [ G., dim. of frau woman. See Frau. ] In Germany, a young lady; an unmarried woman; -- as a title, equivalent to Miss. [ Webster 1913 Suppl. ]

‖n. pl. [ NL., fr. Galeus, name of one genus, fr. Gr. &unr_; a kind of shark. ] (Zool.) That division of elasmobranch fishes which includes the sharks. [ 1913 Webster ]

n. [ Pyrogallol + phthaleïn. ] (Chem.) A red crystalline dyestuff, obtained by heating together pyrogallic and phthalic acids. [ 1913 Webster ]

, n. See Glair. [ Obs. ] Chaucer. [ 1913 Webster ]

‖n.; pl. L. Hypocleida E. Hypocleidiums [ NL., fr. Gr. &unr_; under + &unr_; a little key. ] (Anat.) A median process on the furculum, or merrythought, of many birds, where it is connected with the sternum. [ 1913 Webster ]

{ } [ Gr. &unr_; beautiful + &unr_; appearance, form + &unr_; sound. ] (Physics.) An instrument invented by Professor Wheatstone, consisting of a reflecting knob at the end of a vibrating rod or thin plate, for making visible, in the motion of a point of light reflected from the knob, the paths or curves corresponding with the musical notes produced by the vibrations. [ 1913 Webster ]

n. [ Gr. &unr_; beautiful + e'i^dos form + -scope. ] An instrument invented by Sir David Brewster, which contains loose fragments of colored glass, etc., and reflecting surfaces so arranged that changes of position exhibit its contents in an endless variety of beautiful colors and symmetrical forms. It has been much employed in arts of design. [ 1913 Webster ]

Shifting like the fragments of colored glass in the kaleidoscope. G. W. Cable.

{ } a. Of, pertaining to, or formed by, a kaleidoscope; variegated. [ 1913 Webster ]

prop. n. A battle of World War II (January 1944); American forces landed and captured a Japanese airbase. [ WordNet 1.5 ]

pos>n. & interj. [ Gr. ky`rie 'elei^son . ] [ 1913 Webster ]

1. (R. C. Ch.) Greek words, meaning “Lord, have mercy upon us, ” used in the Mass, the breviary offices, the litany of the saints, etc. Addis & Arnold. [ 1913 Webster ]

2. The name given to the response to the Commandments, in the service of the Church of England and of the Protestant Episcopal Church. [ 1913 Webster ]

a. [ L. leguleius pettifogger, fr. lex, legis, law. ] Lawyerlike; legal. [ R. ] “Leguleian barbarism.” De Quincey. -- n. A lawyer. [ 1913 Webster ]

n. [ See Leger, and Ledger. ] See Leger, n., 2. [ Obs. ] Shak. [ 1913 Webster ]

n. The type and sole genus of the family Leiopelmatidae. [ Also spelled Liopelma. ]
Syn. -- genus Leiopelma, Liopelma, genus Liopelma. [ WordNet 1.5 ]

n. A natural family of primitive New Zealand frogs. [ Also spelled Liopelmidae. ]
Syn. -- family Leiopelmatidae, Liopelmidae, family Liopelmidae. [ WordNet 1.5 ]

n. A genus having only one species, the sand myrtle.
Syn. -- genus Leiophyllum. [ WordNet 1.5 ]

a. Of or pertaining to the Leiotrichi. -- n. One of the Leiotrichi. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. lei^os smooth + qri`x, tricho`s, hair. ] (Anthropol.) The division of mankind which embraces the smooth-haired races. [ 1913 Webster ]

a. [ See Leiotrichi. ] (Anthropol.) Having smooth, or nearly smooth, hair. [ 1913 Webster ]

‖n. [ NL. ] (Zool.) A genus of Australian gallinaceous birds including but a single species (Leipoa ocellata), about the size of a turkey. Its color is variegated, brown, black, white, and gray. Called also native pheasant. [ 1913 Webster ]

☞ It makes large mounds of sand and vegetable material, in which its eggs are laid to be hatched by the heat of the decomposing mass. [ 1913 Webster ]

a. See Lipothymic. [ 1913 Webster ]

a. [ See Leisure. ] [ 1913 Webster ]

1. Leisurely. [ Obs. ] Hooker. [ 1913 Webster ]

2. Vacant of employment; not occupied; idle; leisure; as leisurable hours. [ Obs. ] Sir T. Browne. [ 1913 Webster ]

adv. At leisure. [ Obs. ] [ 1913 Webster ]

n. [ OE. leisere, leiser, OF. leisir, F. loisir, orig., permission, fr. L. licere to be permitted. See License. ] 1. Freedom from occupation or business; vacant time; time free from employment. [ 1913 Webster ]

The desire of leisure is much more natural than of business and care. Sir W. Temple. [ 1913 Webster ]

2. Time at one's command, free from engagement; convenient opportunity; hence, convenience; ease. [ 1913 Webster ]

He sighed, and had no leisure more to say. Dryden. [ 1913 Webster ]

At leisure. (a) Free from occupation; not busy. (b) In a leisurely manner; at a convenient time. [ 1913 Webster ]

a. Unemployed; as, leisure hours. [ 1913 Webster ]

a. Having leisure. “The leisured classes.” Gladstone. [ 1913 Webster ]

a. Characterized by leisure; taking abundant time; not hurried; as, a leisurely manner; a leisurely walk. [ 1913 Webster ]

adv. In a leisurely manner. Addison. [ 1913 Webster ]