rock lobster vs spiny lobster

rock lobster and spiny lobster both are nouns.

Word	Noun	Adjective	Verb	Adverb
rock lobster	Yes	No	No	No
spiny lobster	Yes	No	No	No

As nouns, rock lobster and spiny lobster are synonyms defined as:

rock lobster and spiny lobster: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters

Other synonyms of rock lobster include crawfish, crayfish, langouste, sea crawfish.

As nouns, rock lobster and spiny lobster are synonyms defined as:

rock lobster and spiny lobster: warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California

Other synonyms of rock lobster include crayfish, langouste.

rock lobster (noun)	spiny lobster (noun)
large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters	large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California	warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California