a. [ L. integrans, -antis, p. pr. of integrare to make whole, renew: cf. F. intégrant. See Integrate. ] Making part of a whole; necessary to constitute an entire thing; integral. Boyle. [ 1913 Webster ]

All these are integrant parts of the republic. Burke. [ 1913 Webster ]

Integrant parts, or
Integrant particles, of bodies, those smaller particles into which a body may be reduced without loss of its original constitution, as by mechanical division. [ 1913 Webster ]