-oid, -oidal, -oidism, -odic
(Greek: a suffix; like, resembling, similar to, form)
pterygoid
reptiloid
reticuloid
retinoid
1. Resembling the retina.
2. Any of a group of substances related to vitamin A and functioning like vitamin A in the body.
rhabdoid, rhabdoidal
1. Rod-shaped.
2. Resembling a rod.
rheumatoid
rhizoid
1. A slender outgrowth on mosses, liverworts, and the reproductive cells of ferns that absorbs nourishment in much the same way as a root.
2. Any of various slender filaments that function as roots in mosses, ferns, fungi, etc.
rhyssoid
sarcoid
1. Resembling flesh.
2. A small epithelioid tubercle-like lesion characteristic of sarcoidosis (chronic multisystem disease).
sauroid
In zoology, resembling a reptile.
scaphoid
scaraboid
A (gem) similar to a scarab.
scleroid
scolecoid
Resembling a worm.
selenoid
Crescentic.