latex vs natural rubber

latex and natural rubber both are nouns.

Word	Noun	Adjective	Verb	Adverb
latex	Yes	No	No	No
natural rubber	Yes	No	No	No

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

latex: a milky exudate from certain plants that coagulates on exposure to air
natural rubber: 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, gum elastic, India rubber, rubber.

latex (noun)	natural rubber (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