dejection vs meconium

dejection and meconium both are nouns.

Word	Noun	Adjective	Verb	Adverb
dejection	Yes	No	No	No
meconium	Yes	No	No	No

As nouns, meconium is a hyponym of dejection; that is, meconium is a word with a more specific, narrower meaning than dejection:

dejection: solid excretory product evacuated from the bowels
meconium: thick dark green mucoid material that is the first feces of a newborn child

Other hyponyms of dejection include dog do, dog shit, dog turd, doggy do, crap, dirt, poop, shit, shite, turd, droppings, dung, muck, melaena, melena.

dejection (noun)	meconium (noun)
a state of melancholy depression	thick dark green mucoid material that is the first feces of a newborn child
solid excretory product evacuated from the bowels