Colorado pikeminnow

noun

: a large dull olive green pikeminnow (Ptychocheilus lucius) that was formerly present in most of the Colorado River and its tributaries but is now restricted mainly to its northern range and that may reach a length of six feet (1.8 meters)

Word History

First Known Use

1998, in the meaning defined above

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!