tissue layer vs intima

tissue layer and intima both are nouns.

Word	Noun	Adjective	Verb	Adverb
tissue layer	Yes	No	No	No
intima	Yes	No	No	No

As nouns, intima is a hyponym of tissue layer; that is, intima is a word with a more specific, narrower meaning than tissue layer:

tissue layer: a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
intima: the innermost membrane of an organ (especially the inner lining of an artery or vein or lymphatic vessel)

tissue layer (noun)	intima (noun)
a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants	the innermost membrane of an organ (especially the inner lining of an artery or vein or lymphatic vessel)