a small bone forming part of the acetabular cavity in some mammals
Word origin
C18: from Greek kotuloeidēs cup-shaped, from kotulē a cup
cotyloid in American English
(ˈkɑtlˌɔid)
adjective
Anatomy
cup-shaped
Word origin
[1750–60; ‹ Gk kotyloeide᷄s, equiv. to kotýl(ē) cup + -oeidēs-oid]This word is first recorded in the period 1750–60. Other words that entered Englishat around the same time include: Yankee, bunker, continental, summation, swish-oid is a suffix meaning “resembling,” “like,” used in the formation of adjectives andnouns (and often implying an incomplete or imperfect resemblance to what is indicatedby the preceding element). Other words that use the affix -oid include: anthropoid, cardioid, cuboid, ovoid, planetoid