loam vs regur soil

loam and regur soil both are nouns.

Word	Noun	Adjective	Verb	Adverb
loam	Yes	No	No	No
regur soil	Yes	No	No	No

As nouns, regur soil is a hyponym of loam; that is, regur soil is a word with a more specific, narrower meaning than loam:

loam: a rich soil consisting of a mixture of sand and clay and decaying organic materials
regur soil: a rich black loam of India

Other hyponyms of loam include regur, chernozemic soil.

loam (noun)	regur soil (noun)
a rich soil consisting of a mixture of sand and clay and decaying organic materials	a rich black loam of India