latex vs gum elastic

latex and gum elastic both are nouns.

Word	Noun	Adjective	Verb	Adverb
latex	Yes	No	No	No
gum elastic	Yes	No	No	No

As nouns, gum elastic is a hyponym of latex; that is, gum elastic is a word with a more specific, narrower meaning than latex:

latex: a milky exudate from certain plants that coagulates on exposure to air
gum elastic: an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products

Other hyponyms of latex include caoutchouc, India rubber, natural rubber, rubber.

latex (noun)	gum elastic (noun)
a water-base paint that has a latex binder	an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
a milky exudate from certain plants that coagulates on exposure to air