illumination unit vs lx

illumination unit and lx both are nouns.

Word	Noun	Adjective	Verb	Adverb
illumination unit	Yes	No	No	No
lx	Yes	Yes	No	No

As nouns, lx is a hyponym of illumination unit; that is, lx is a word with a more specific, narrower meaning than illumination unit:

illumination unit: a measure of illumination
lx: a unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle

Other hyponyms of illumination unit include footcandle, L, lambert, lux, phot.

illumination unit (noun)	lx (noun)
a measure of illumination	a unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle

illumination unit (adjective)	lx (adjective)
	being ten more than fifty