shellproof

adjective

shell·proof ˈshel-ˌprüf

: capable of resisting shells or bombs

Word History

First Known Use

circa 1859, in the meaning defined above

Time Traveler

The first known use of shellproof was circa 1859

See more words from the same year

Browse Nearby Words

shell plating

shellproof

shell pump

See all Nearby Words

Cite this Entry

Style

“Shellproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/shellproof. Accessed 11 Dec. 2025.

Copy Citation

More from Merriam-Webster

Word of the Day

leviathan

Listen to the pronunciation of leviathan

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

'Affect' vs. 'Effect'

'Buck Naked' or 'Butt Naked'?

31 Useful Rhetorical Devices

The Difference Between 'i.e.' and 'e.g.'

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

More Words with Remarkable Origins

Top 10 Sophisticated Insults

17 Words for Dog Breeds

How 'Namaste' Entered The English Language

'Za' and 9 Other Words to Help You Win at SCRABBLE

Popular

'Affect' vs. 'Effect'

More Words with Remarkable Origins

Top 10 Sophisticated Insults