形容詞 lunate:

1. resembling the new moon in shape
   同義詞：crescent, crescent-shaped, semilunar

lu.nate

adj.（形容詞）
Shaped like a crescent.
新月形的：象新月形狀的
n.（名詞）
Archaeology A small stone artifact, probably an arrowhead, with a blunt straight edge and a sharpened, crescent-shaped back, especially characteristic of the Mesolithic Age.
【考古學】 新月形石器：一個小的石制的人工制造物，可能是個箭頭，有鈍的直邊，尖的新月形背部，尤其是有中石器時代特點的

來源：
Latin lôn3tus [past participle of] lôn3re [to bend like a crescent]
拉丁語 lôn3tus [] lôn3re的過去分詞 [象一彎新月那樣彎著]
from lôna [moon] * see leuk-
源自 lôna [月球] *參見 leuk-