milter

A male salmon, or milter, swims upstream in a clear river.

Definition

1. Noun:
   • A male fish in breeding condition: "milter" refers to a male fish, especially during the spawning season, when it is producing milt (sperm).
   • A fish that produces milt: More specifically, it denotes a fish that is sexually mature and capable of fertilizing eggs.

Usage Examples

• Noun:
  • The hatchery separated the milter from the female to control spawning. (A male fish ready to breed.)
  • During the spring run, the river is full of milters. (Male fish in spawning condition.)

Advanced Usage

• "Milter" in aquaculture: The term is commonly used in fish farming to identify males that are actively producing sperm for artificial fertilization.
  • The technician collected milt from the milter for use in the breeding program. (Sperm from a male fish used in controlled reproduction.)

Variants and Related Words

• Milt (noun): the sperm-containing fluid of a male fish.
  • The milt was extracted from the milter and mixed with eggs. (The reproductive fluid.)
• Milt (verb): to produce or release milt.
  • The male fish milt when the water temperature rises. (Release sperm.)

Synonyms

• Male spawner: a male fish that releases sperm during reproduction.
• Breeding male: a male fish in a reproductive state.

Related Idioms

Additional Notes

• The word "milter" is rarely used outside of scientific, fishing, or fish-farming contexts. It is derived from "milt," which comes from Old English meaning "spleen" (the organ that produces milt in fish).