feces vs dog turd

feces and dog turd both are nouns.

Word	Noun	Adjective	Verb	Adverb
feces	Yes	No	No	No
dog turd	Yes	No	No	No

As nouns, dog turd is a hyponym of feces; that is, dog turd is a word with a more specific, narrower meaning than feces:

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

feces (noun)	dog turd (noun)
solid excretory product evacuated from the bowels	fecal droppings from a dog