cranial orbit vs lacrimal bone

cranial orbit and lacrimal bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
cranial orbit	Yes	No	No	No
lacrimal bone	Yes	No	No	No

cranial orbit (noun)	lacrimal bone (noun)
the bony cavity in the skull containing the eyeball	small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts