a shape of the upper lip considered to resemble Cupid's double-curved bow
cupid's-bow in American English
(ˈkjupɪdzˌboʊ)
adjective
in the shape of the bow that Cupid is usually pictured as carrying
a cupid's-bow mouth
Cupid's bow in American English
(bou)
noun
1.
a classical bow Cupid is traditionally pictured as bearing
2.
a line or shape resembling this, esp. the line of the upper lip
Word origin
[1855–60]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: keyword, lavabo, pipeline, specialist, superheat