1590s, "white of an egg," from Latin albumen (ovi) "white (of an egg)," literally "whiteness," from the neuter of albus "white" (see alb). The organic substance (which exists nearly pure in egg whites) so called from 1800, also known as albumin (1869, from French albumine).
word-forming element making adjectives from nouns, meaning "having, full of, having to do with, doing, inclined to," from Old French -ous, -eux, from Latin -osus (compare -ose (1)). In chemistry, "having a lower valence than forms expressed in -ic."
<a href="https://www.etymonline.com/word/albuminous">Etymology of albuminous by etymonline</a>
Harper, D. (n.d.). Etymology of albuminous. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/albuminous