supraglacial moraine vs moraine

supraglacial moraine and moraine both are nouns.

Word	Noun	Adjective	Verb	Adverb
supraglacial moraine	Yes	No	No	No
moraine	Yes	No	No	No

As nouns, moraine is a hypernym of supraglacial moraine; that is, moraine is a word with a broader meaning than supraglacial moraine:

supraglacial moraine: a moraine created by debris accumulated on top of glacial ice.
moraine: accumulated earth and stones deposited by a glacier

supraglacial moraine (noun)	moraine (noun)
a moraine created by debris accumulated on top of glacial ice.	accumulated earth and stones deposited by a glacier