- a young, silvery salmon in the stage of its first migration to the sea.
Origin of smolt
1425–75; late Middle English; perhaps akin to smelt2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for smolt
They are then called "smolt," and are as adult salmon in all respects save size.Alaska
Shortly after assuming the smolt dress, the young salmon takes its departure to the sea.
In about fifteen months it loses these marks and becomes quite silvery, being now known as a smolt.
- a young salmon at the stage when it migrates from fresh water to the sea
C14: Scottish, of uncertain origin; perhaps related to smelt ²