arcuate
adjective
ar·cu·ate ˈär-kyə-wət 
-ˌwāt
: curved like a bow
an arcuate cloud
arcuately adverb
Word History
Etymology
Latin arcuatus, past participle of arcuare to bend like a bow, from arcus bow
First Known Use
1626, in the meaning defined above
Medical Definition
arcuate
adjective
ar·cu·ate ˈär-kyə-wət -ˌwāt
-ˌwāt : curved like a bow
arcuate fibers in the brain