sea cradle vs chiton

sea cradle and chiton both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea cradle	Yes	No	No	No
chiton	Yes	No	No	No

As nouns, sea cradle and chiton are synonyms defined as:

sea cradle and chiton: primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates

Other synonyms of sea cradle include coat-of-mail shell, polyplacophore.

sea cradle (noun)	chiton (noun)
primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates	primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates
	a woolen tunic worn by men and women in ancient Greece