1. Fish sperm, including the seminal fluid.
2. The reproductive glands of male fishes when filled with this fluid.
tr.v. milt·ed, milt·ing, milts
To fertilize (fish roe) with milt.
[Middle English, spleen, milt, probably partly from Middle Dutch milte, spleen, milt, and partly from Old English milte, spleen; see mel-1 in the Appendix of Indo-European roots.]
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