Meaning of LETHAL in English

LETHAL

/ ˈliːθl; NAmE / adjective

1.

causing or able to cause death

SYN deadly , fatal :

a lethal dose of poison

a lethal weapon

( figurative )

The closure of the factory dealt a lethal blow to the town.

2.

( informal ) causing or able to cause a lot of harm or damage :

You and that car—it's a lethal combination!

►  le·thal·ly / ˈliːθəli; NAmE / adverb

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WORD ORIGIN

late 16th cent. (in the sense causing spiritual death ): from Latin lethalis , from lethum , a variant (influenced by Greek lēthē forgetfulness), of letum death.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.