What does "cottonmouth" mean?

An oral dryness often associated with certain medicines and recreational drugs.

Cottonmouth

Common synonyms include: agkistrodon piscivorus, water moccasin, cottonmouth moccasin, mocassin, moccasin, snake.

noun

noun ·3 syllables ·Rare ·Advanced level

Noun

1
An oral dryness often associated with certain medicines and recreational drugs. uncountable
2
venomous semiaquatic snake of swamps in southern United States wordnet
3
A snake, Agkistrodon piscivorus, the water moccasin.
4
A snake, Agkistrodon contortrix mokasen, the northern copperhead.

"Do you have any gum? I've got really bad cottonmouth."

From cotton + mouth.