any large, stinging jellyfish.
Origin of sea nettle
First recorded in 1595–1605
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for sea nettle
Historical Examples of sea nettle
I have seen the animal nestling in them; it seemed to be a species of cuttle-fish or sea-nettle.The Ocean World: