IPA: //ˌpɪk.rəʊˈtɒk.sɪn//
KK: /pɪkroʊˈtɒksɪn/
A bitter and poisonous substance that comes from a specific vine and is used as a stimulant, particularly to treat certain types of poisoning.
Doctors sometimes use picrotoxin as an antidote for barbiturate overdoses.
Picrotoxin is formed from "picra" (from Greek "pikros", meaning bitter) and "toxin" (from Greek "toxikon", meaning poison). The word describes a bitter poison derived from certain plants, particularly used in pharmacology.
Think of 'bitter' ('picra') to remember that 'picrotoxin' refers to a bitter poison.