amphigamous,a.Bot.|æmˈfɪgəməs| [f. amphigam + -ous.] Of or pertaining to Amphigams. 1841Lindley Elem.Bot. 90 Amphigamous..that is, destitute of stomates and entirely cellular.1880Gray Struct.Bot. ix. §2. 340 Amphigamous: destitute of sexual organs and of other than cellular tissue.