caisson disease vs bends

caisson disease and bends both are nouns.

Word	Noun	Adjective	Verb	Adverb
caisson disease	Yes	No	No	No
bends	Yes	No	No	No

As nouns, caisson disease and bends are synonyms defined as:

Other synonyms of caisson disease include aeroembolism, air embolism, decompression sickness, gas embolism.

caisson disease (noun)	bends (noun)
pain resulting from rapid change in pressure	pain resulting from rapid change in pressure