seminal fluid vs milt

seminal fluid and milt both are nouns.

Word	Noun	Adjective	Verb	Adverb
seminal fluid	Yes	No	No	No
milt	Yes	No	No	No

As nouns, milt is a hyponym of seminal fluid; that is, milt is a word with a more specific, narrower meaning than seminal fluid:

seminal fluid: the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
milt: seminal fluid produced by male fish

Other hyponyms of seminal fluid include creampie.

seminal fluid (noun)	milt (noun)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract	seminal fluid produced by male fish
	fish sperm or sperm-filled reproductive gland; having a creamy texture