lunar caustic

noun

: silver nitrate especially when fused and molded into sticks for use as a caustic

Word History

Etymology

lunar "of silver," borrowed from Medieval Latin lūnāris "of silver, lunar," from Latin lūna "moon" as an alchemist's name for silver

First Known Use

1751, in the meaning defined above

Time Traveler
The first known use of lunar caustic was in 1751

Dictionary Entries Near lunar caustic

lunar bone

lunar caustic

lunar cycle

See More Nearby Entries 

Cite this Entry

“Lunar caustic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lunar%20caustic. Accessed 23 Nov. 2024.

Copy Citation

Share

Medical Definition

lunar caustic

noun
: silver nitrate especially when fused and molded into sticks or small cones for use as a caustic
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See All

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Plural and Possessive Names: A Guide

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

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

What's the difference between 'fascism' and 'socialism'?
See All

Popular in Wordplay

See All

8 Words with Fascinating Histories

8 Words for Lesser-Known Musical Instruments

Birds Say the Darndest Things

10 Words from Taylor Swift Songs (Merriam's Version)

10 Scrabble Words Without Any Vowels
See All

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
little chihuahua dressing like a turkey for thanksgiving
Giving Thanks Quiz Decide which words express gratitude and which gi...