| 释义 |
meth·yl·ene
\ˈmethəˌlēn\ noun
(-s)
Etymology: French méthylène, from Greek methy wine + hylē wood + -ēnē (feminine patronymic suffix) — more at mead
: a bivalent hydrocarbon radical CH2 = or −CH2− derived from methane by removal of two hydrogen atoms — compare polymethylene |