名詞 planarian:

1. free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
   同義詞：planaria

pla.nar.i.an

n.（名詞）
Any of various small, chiefly freshwater turbellarian flatworms of the order Tricladida, having soft, broad, ciliated bodies, a three-branched digestive cavity, and the ability to regenerate body parts.
渦蟲：三腸目的主要生于淡水的小渦蟲類扁形蟲，具有柔軟、寬闊、長(zhǎng)纖毛和助消化的三叉腔以及再生身體其它部分的能力

來源：
From New Latin Pl3n3ria [genus name]
源自 現(xiàn)代拉丁語 Pl3n3ria [屬名]
from feminine of Late Latin pl3n3rius [on level ground]
源自 后期拉丁語 pl3n3rius的陰性詞 [地平線]
from pl3nus [flat] * see pel…- 2
源自 pl3nus [平的] *參見 pel…- 2