orbicular (adj.)youdaoicibaDictYouDict[orbicular 词源字典]
"round, circular, spherical," mid-15c., from Old French orbiculaire "round, circular," or directly from Late Latin orbicularis "circular, orbicular," from Latin orbiculus, diminutive of orbis "circle" (see orb). Related: Orbicularity.[orbicular etymology, orbicular origin, 英语词源]