amnionic fluid vs body fluid

amnionic fluid and body fluid both are nouns.

Word	Noun	Adjective	Verb	Adverb
amnionic fluid	Yes	No	No	No
body fluid	Yes	No	No	No

As nouns, body fluid is a hypernym of amnionic fluid; that is, body fluid is a word with a broader meaning than amnionic fluid:

amnionic fluid: the serous fluid in which the embryo is suspended inside the amnion
body fluid: the liquid parts of the body

Other hypernyms of amnionic fluid include bodily fluid, humor, humour, liquid body substance.

amnionic fluid (noun)	body fluid (noun)
the serous fluid in which the embryo is suspended inside the amnion	the liquid parts of the body