Xestobium rufovillosum vs deathwatch

Xestobium rufovillosum and deathwatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Xestobium rufovillosum	Yes	No	No	No
deathwatch	Yes	No	No	No

As nouns, Xestobium rufovillosum and deathwatch are synonyms defined as:

Xestobium rufovillosum and deathwatch: bores through wood making a ticking sound popularly thought to presage death

Other synonyms of Xestobium rufovillosum include deathwatch beetle.

Xestobium rufovillosum (noun)	deathwatch (noun)
bores through wood making a ticking sound popularly thought to presage death	bores through wood making a ticking sound popularly thought to presage death
	minute wingless psocopterous insects injurious to books and papers