caffeinism vs intoxication

caffeinism and intoxication both are nouns.

Word	Noun	Adjective	Verb	Adverb
caffeinism	Yes	No	No	No
intoxication	Yes	No	No	No

As nouns, intoxication is a hypernym of caffeinism; that is, intoxication is a word with a broader meaning than caffeinism:

caffeinism: poisoning resulting from excessive intake of caffeine containing products
intoxication: the physiological state produced by a poison or other toxic substance

Other hypernyms of caffeinism include poisoning, toxic condition.

caffeinism (noun)	intoxication (noun)
poisoning resulting from excessive intake of caffeine containing products	excitement and elation beyond the bounds of sobriety
	a temporary state resulting from excessive consumption of alcohol
	the physiological state produced by a poison or other toxic substance