snake venom vs venom

snake venom and venom both are nouns.

Word	Noun	Adjective	Verb	Adverb
snake venom	Yes	No	No	No
venom	Yes	No	No	No

As nouns, venom is a hypernym of snake venom; that is, venom is a word with a broader meaning than snake venom:

snake venom: venom secreted by certain snakes
venom: toxin secreted by animals; secreted by certain snakes and poisonous insects (e.g., spiders and scorpions)

snake venom (noun)	venom (noun)
venom secreted by certain snakes	feeling a need to see others suffer
	toxin secreted by animals; secreted by certain snakes and poisonous insects (e.g., spiders and scorpions)