"consisting of or resembling pomace," 1706, from Vulgar Latin *poma "apple," originally plural of Latin pomus "fruit," later "apple" (see Pomona) + -aceous.
Entries linking to pomaceous
Pomona n.
Roman goddess of fruit trees and their culture, from Latin pomum "apple; fruit," a word of uncertain origin. "Possibly from *po-emo- 'taken off, picked'; *po-omo- or *pe-omo- are also conceivable" [de Vaan]. Or perhaps borrowed from a lost Mediterranean language. Related: Pomonical.
-aceous
word-forming element denoting "belonging to, of the nature of," from Latin -aceus, enlarged form of adjectival suffix -ax (genitive -acis); see -acea. Especially in biology, "pertaining to X order of plants or animals."