Yes, milt is a Scrabble word!
...and is worth 6 points in Scrabble, and 8 points in Words with Friends
milt
Noun
1. Fish sperm or sperm-filled reproductive gland; having a creamy texture
2. Seminal fluid produced by male fish
What Scrabble words can I make with the letters in milt?
3 Letter Words
2 Letter Words