Poisonous and having its effect; injurious to health (adjective)
Looking for the answer to the USA Today Rootonym clue “Poisonous and having its effect; injurious to health (adjective)”? The solution is TOXIC, a 5-letter word built on the root TOX (“poison”). It appeared in the July 5, 2026 (Sunday) USA Today Rootonym. See the full puzzle for that day's other words.
Answer
TOXIC
TOX**TOXmeans “poison”
In a sentence
Scientists concur that carbon monoxide is a TOXIC gas with lethal consequences.
About this clue
The Rootonym clue “Poisonous and having its effect; injurious to health (adjective)” has the answer TOXIC (5 letters), built on the root TOX, which means “poison”. Browse the full July 5, 2026 Rootonym puzzle for the other three words, or see all Rootonym answers.