Japanese edit

Kanji in this term
あな
Grade: 6
kun’yomi
For pronunciation and definitions of えら穴 – see the following entry.
えらあな
[noun] (ichthyology) gill slit
Alternative spellings
鰓孔, 鰓穴, エラ穴, エラあな
(This term, えら穴, is an alternative spelling of the above term.)