Lethal
Lethal (leth"al) , noun
[Lauric + ether + alcohol.]
(Chemistry) One of the higher alcohols of the paraffine series obtained from spermaceti as a white crystalline solid. It is so called because it occurs in the ethereal salt of lauric acid.
Lethal (lē"thal) , adjective
[Latin lethalis, letalis, from lethum, letum, death: compare French léthal.]
Deadly; mortal; fatal.
The lethal blow.