a. and sb. [f. CO- + EXISTENT; cf. F. coexistant.]
A. adj. Existing together or in conjunction; coexisting; contemporaneous.
1662. Stillingfl., Orig. Sacr., I. ii. § 2. He makes Semiramis coexistent with the Siege of Troy.
1863. E. V. Neale, Anal. Th. & Nat., 39. Relations between combinations thought of as coexistent or as successive.
1878. Gurney, Crystallogr., 30. Every group of such coexistent faces is called a crystallographic form.
B. sb. That which coexists with something else; a concomitant.
1846. Mill, Logic, III. xxii. § 4. Every property of an object has an invariable coexistent which he called its Form.
1856. Chamb. Jrnl., VI. 34. Gorgeous envelopments were almost necessarily the coexistents of elaborate writing.