latent period vs latency

latent period and latency both are nouns.

Word	Noun	Adjective	Verb	Adverb
latent period	Yes	No	No	No
latency	Yes	No	No	No

As nouns, latent period and latency are synonyms defined as:

latent period and latency: the time that elapses between a stimulus and the response to it

Other synonyms of latent period include reaction time, response time.

latent period (noun)	latency (noun)
the time that elapses before the presence of a disease is manifested by symptoms	the state of being not yet evident or active
the time that elapses between a stimulus and the response to it	the time that elapses between a stimulus and the response to it
	(computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head