Lethal Definition
lēthəl
adjective
Causing or capable of causing death; fatal or deadly.
Webster's New World
Extremely harmful; devastating.
Accusations lethal to the candidate's image.
American Heritage
Antonyms:
noun
(chemistry) One of the higher alcohols of the paraffine series obtained from spermaceti as a white crystalline solid.
Wiktionary
Origin of Lethal
-
From Latin lÄ“tālis (“mortal, deadly"), improperly written lethalis, from letum (“death"), improperly written as lethum, as associated with Greek λήθη (lethe, “forgetfulness").
From Wiktionary
Late Latin lēthālis alteration (probably influenced by Lēthē Lethe) of Latin lētālis from lētum death
From American Heritage Dictionary of the English Language, 5th Edition
Abbreviation of “lauric acid ethereal salt", so called because it occurs in the ethereal salt of lauric acid.
From Wiktionary
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