a. [f. AMPHIGEN + -OUS.]
1. Bot. Of or pertaining to the Amphigens; growing all round a central point.
1835. Lindley, Introd. Bot. (1848), II. 380. Amphigenous; growing all round an object.
1857. Berkeley, Crypt. Bot., § 392. Fructifying surface inferior or amphigenous.
2. Chem. Of the nature or class of an amphigen.
1879. Syd. Soc. Lex., s.v. Amphide, They are due to the composition of compounds produced by amphigenous bodies.