: of or relating to the genus Citrus
a hardier strain of citrous trees
: of, relating to, devoted to the production of, or affecting plants or fruit of the genus Citrus
a citrous disease
an important citrous area

Word History


in sense 1, from New Latin Citrus; in sense 2, from citrus + -ous

First Known Use

1658, in the meaning defined at sense 2

Time Traveler
The first known use of citrous was in 1658

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near citrous

Cite this Entry

“Citrous.” Dictionary, Merriam-Webster, Accessed 11 Dec. 2023.

Love words? Need even more definitions?

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