hyaloplasm vs ground substance

hyaloplasm and ground substance both are nouns.

Word	Noun	Adjective	Verb	Adverb
hyaloplasm	Yes	No	No	No
ground substance	Yes	No	No	No

As nouns, hyaloplasm and ground substance are synonyms defined as:

hyaloplasm and ground substance: the clear nongranular portion of the cytoplasm of a cell

hyaloplasm (noun)	ground substance (noun)
the clear nongranular portion of the cytoplasm of a cell	the body substance in which tissue cells are embedded
	the clear nongranular portion of the cytoplasm of a cell