sericterium vs silkworm

sericterium and silkworm both are nouns.

Word	Noun	Adjective	Verb	Adverb
sericterium	Yes	No	No	No
silkworm	Yes	No	No	No

sericterium (noun)	silkworm (noun)
silk-producing gland of insects (especially of a silkworm) or spiders	the commercially bred hairless white caterpillar of the domestic silkworm moth which spins a cocoon that can be processed to yield silk fiber; the principal source of commercial silk
	larva of a saturniid moth; spins a large amount of strong silk in constructing its cocoon