Liposcelis divinatorius vs deathwatch

Liposcelis divinatorius and deathwatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Liposcelis divinatorius	Yes	No	No	No
deathwatch	Yes	No	No	No

As nouns, Liposcelis divinatorius and deathwatch are synonyms defined as:

Liposcelis divinatorius and deathwatch: minute wingless psocopterous insects injurious to books and papers

Other synonyms of Liposcelis divinatorius include book louse, booklouse.

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