Smolts is a 6 letter English word. It's valid Scrabble word worth 7 points. It's valid Words with friends word worth 9 points.
You can make 76 anagrams from letters in smolts (lmosst).
1425-75; late Middle English; perhaps akin to smelt2
They are then called "smolt," and are as adult salmon in all respects save size.
In about fifteen months it loses these marks and becomes quite silvery, being now known as a smolt.
Shortly after assuming the smolt dress, the young salmon takes its departure to the sea.