nemato-
/ˈnemətəʊ/(亦作nemat- before a vowel)
combining form
1- denoting something thread-like in shape表示“线状物”：
nematocyst.
1.1
- relating to Nematoda表示“与线虫纲有关的”：
nematocide.
词源
from Greek nēma, nēmat- 'thread'.