dry up vs desiccate

dry up is not an adjective while desiccate is an adjective.

Word	Noun	Adjective	Verb	Adverb
dry up	No	No	Yes	No
desiccate	No	Yes	Yes	No

As verbs, dry up and desiccate are synonyms defined as:

Other synonyms of dry up include dehydrate, exsiccate.

dry up (adjective)	desiccate (adjective)
	lacking vitality or spirit; lifeless

dry up (verb)	desiccate (verb)
lose water or moisture	lose water or moisture
dry up and shrivel due to complete loss of moisture	preserve by removing all water and liquids from
	remove water from