leafage vs parenchyma

leafage and parenchyma both are nouns.

Word	Noun	Adjective	Verb	Adverb
leafage	Yes	No	No	No
parenchyma	Yes	No	No	No

leafage (noun)	parenchyma (noun)
the main organ of photosynthesis and transpiration in higher plants	animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels
	the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems