-aceous, -acea, -aceae, -aceaen, -aceus
(Latin: a suffix; having the quality of, of the nature of, characterized by, belonging to, resembling)
There are hunderds of words that utilize the -aceous suffix which are not shown here; however, the following will present important examples.
A suffix that forms adjectives and is used with technical combinations, especially in biological terms: "pertaining or belonging to, of the nature of, or characterized by; to be full of, to possess abundantly". The suffix -acea usually denotes "orders and classes in zoology" while the suffix -aceae usually denotes "orders and families in botany" and -aceaen is used to denote members of "orders of the animal kingdom".
pomaceous
pseudofoliaceous
rosacea, rosaceous
Of the rose family.
saccharaceous
sanguinaceous
A reference to a blood-red color; sanguine.
sanquinaceous
Blood-red, sanguine.
saponaceous
1. Of the nature of, or resembling, soap; consisting of, or containing, soap; soapy.
2. Having the consistency of soap; slippery.
saponaceous
Resembling soap; having the qualities of soap, soapy.
saxifragaceous
Schistostegaceae
sebaceous
Pertaining to, of the nature of, or resembling tallow or fat; oily, greasy.
sebaceous, sebaceus
Containing, or pertaining to, sebum, an oily, fatty matter secreted by the sebaceous glands.
semiherbaceous
setaceous
1. Having or covered with protective barbs, quills, spines, thorns, or setae, etc.
2. Bristle-like; bristle-shaped; having bristles; such as, a setaceous moth.
3. Resembling bristles or a bristle: "So many men these days appear with setaceous whiskers."
siphonaceous
Also see this closely related -eous suffix unit.