consumption vs burnup

consumption and burnup both are nouns.

Word	Noun	Adjective	Verb	Adverb
consumption	Yes	No	No	No
burnup	Yes	No	No	No

As nouns, burnup is a hyponym of consumption; that is, burnup is a word with a more specific, narrower meaning than consumption:

consumption (noun)	burnup (noun)
the act of consuming something	the amount of fuel used up (as in a nuclear reactor)
the process of taking food into the body through the mouth (as by eating)	a high-speed motorcycle race on a public road
(economics) the utilization of economic goods to satisfy needs or in manufacturing
involving the lungs with progressive wasting of the body