词根词缀：centro-, centr-, centri-, kentro-

【来源及含义】Greek > Latin: center; middle point, mid point; focus, focal point, focalize; zero in on

【相关描述】This element originally meant "sharp point, goad" or "spur".

【同源单词】acentric, acentric, acrocentric, allocentric, ambulatory surgery center, amphicentric

词根词缀：lept-, lepto-

【来源及含义】Greek: thin, small, fine, delicate, mild; from "peeled, husked"; used primarily in the sense of "abnormally thin, narrow, slender, or delicate"

【同源单词】leptiform, leptocaul, leptocentric, leptocephalia, leptocephalic, leptocephaloid