cyanide poisoning vs poisoning

cyanide poisoning and poisoning both are nouns.

Word	Noun	Adjective	Verb	Adverb
cyanide poisoning	Yes	No	No	No
poisoning	Yes	No	No	No

As nouns, poisoning is a hypernym of cyanide poisoning; that is, poisoning is a word with a broader meaning than cyanide poisoning:

cyanide poisoning: poisoning due to ingesting or inhaling cyanide; common in smoke from fires and in industrial chemicals
poisoning: the physiological state produced by a poison or other toxic substance

Other hypernyms of cyanide poisoning include intoxication, toxic condition.

cyanide poisoning (noun)	poisoning (noun)
poisoning due to ingesting or inhaling cyanide; common in smoke from fires and in industrial chemicals	the act of giving poison to a person or animal with the intent to kill
	the physiological state produced by a poison or other toxic substance