seminal fluid vs semen

seminal fluid and semen both are nouns.

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

As nouns, seminal fluid and semen are synonyms defined as:

seminal fluid and semen: the thick white fluid containing spermatozoa that is ejaculated by the male genital tract

Other synonyms of seminal fluid include come, cum, ejaculate, seed.

seminal fluid (noun)	semen (noun)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract	the thick white fluid containing spermatozoa that is ejaculated by the male genital tract