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n. 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.

n. Either of two small fish, of the genus Leuresthes, found along the coast of Mexico and southern California, that spawn in the wet sand at certain high tides.

"A grunion is a small, sardinelike fish that lays its eggs on dry sand on certain full moon cycles each year."

Bunyan    Runyon    onion    runnion