A small fish (Leuresthes tenuis) of coastal waters of California and Mexico that spawns at night along beaches during the high tides of spring and summer.
A silverside fish (Leuresthes tenuis) of the California coast: it spawns on sandy beaches during high tides in the spring.
Origin of grunion
- Perhaps from Spanish gruñón grumbler from gruñir to grumble, grunt from Latin grunnīre, grundīre to grunt
From American Heritage Dictionary of the English Language, 5th Edition
- Origin uncertain, but probably from American Spanish gruñón (“grunter, grouch”), from gruñir (“to grunt”).