1) Constituent 2) French word used in English 
• (a.) Making part of a whole; necessary to constitute an entire thing; integral.
Making part of a whole; necessary to constitute an entire thing; integral. 'All these are integrant parts of the republic.' (Burke) Integrant parts, or particles, of bodies, those smaller particles into which a body may be reduced without loss of its original constitution, as by mechanical division. ... Origin: L. Integrans, -antis, p. Pr. Of integ...
In'te·grant adjective [ Latin integrans , -antis , present participle of integrare to make whole, renew: confer French intégrant . See Integrate .] Making part of a whole; necessary to constitute an entire thing; integral. Boyle. « All these are i...
making up or being a part of a whole; constituent.