名詞 lancet:

1. an acutely pointed Gothic arch, like a lance
   同義詞：lancet arch
2. a surgical knife with a pointed double-edged blade; used for punctures and small incisions
   同義詞：lance

lan.cet

n.（名詞）
Medicine A surgical knife with a short, wide, pointed double-edged blade, used especially for making punctures and small incisions.Also called lance
【醫(yī)學】 柳葉刀：一種手術刀，有短而寬的雙刃尖頭，尤指用來戳破和切入用的也作 lance
Architecture
【建筑學】
A lancet arch.
尖頂拱
adj.（形容詞）
A lancet window.
尖頂窗

來源：
Middle English
中古英語
from Old French [diminutive of] lance [lance] * see lance
源自 古法語 [] lance的小后綴 [長矛] *參見 lance