Milt is the seminal fluid of fish, mollusks, and certain other water-dwelling animals which reproduce by spraying this fluid, which contains the sperm, onto roe (fish eggs). It can also refer to the sperm sacs or testes that contain the semen. <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/59/Smelt_milt.jpg/1280px-Smelt_milt.jpg" width="500"> From [Wikipedia](https://en.wikipedia.org/wiki/Milt) under [CC BY-SA 2.0](https://creativecommons.org/licenses/by-sa/2.0/) license.