toxic condition to·xic·con·dition uncommon noun 1. the physiological state produced by a poison or other toxic substance Synonymspoisoningtoxic conditionintoxication Related words Word family intoxicate Broader terms physiological state Narrower terms alkali poisoningcaffeinismcarbon monoxide poisoningcyanide poisoningergotismmercury poisoningnaphthalene poisoningnicotine poisoning WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.