• (a.) Like a bed; -- applied to several processes on the inner side of the sphenoid bone.
1. Resembling a four-poster bed. ... Synonym: clinoid process. ... Origin: G. Kline, bed, + eidos, resemblance ... (05 Mar 2000) ... 
Cli'noid adjective [ Greek 
Type: Term Pronunciation: klī′noyd Definitions: 1. Resembling a four-poster bed. Synonyms: clinoid process
cline, bed; the c. processes are named for their resemblance to bed posts.
adjective, Greek kline = bed, eidos = shape or form, hence, like a bed-post.