latching relay vs bistable relay

latching relay and bistable relay both are nouns.

Word	Noun	Adjective	Verb	Adverb
latching relay	Yes	No	No	No
bistable relay	Yes	No	No	No

As nouns, latching relay and bistable relay are synonyms defined as:

latching relay and bistable relay: a relay that maintains either contact position indefinitely without power applied to the coil.

Other synonyms of latching relay include impulse relay, keep relay, stay relay.

latching relay (noun)	bistable relay (noun)
a relay that maintains either contact position indefinitely without power applied to the coil.	a relay that maintains either contact position indefinitely without power applied to the coil.