western rat snake

noun
plural western rat snakes

Definition of western rat snake

: a large, nonvenomous rat snake (Pantherophis obsoletus synonym Pantherophis obsoleta synonym Elaphe obsoleta) of the central U.S. found west of the Mississippi River that is typically black with a white throat

Note: In an alternative classification system, the western rat snake is not considered a separate species but rather included within centrally distributed subspecies (Pantherophis obsoletus obsoletus and P. obsoletus lindheimeri) of a common rat snake.

— compare eastern rat snake, gray rat snake

First Known Use of western rat snake

1975, in the meaning defined above

Learn More About western rat snake

Time Traveler for western rat snake

Time Traveler

The first known use of western rat snake was in 1975

See more words from the same year

Dictionary Entries Near western rat snake

western ragweed

western rat snake

western red cedar

See More Nearby Entries 

Statistics for western rat snake

Cite this Entry

“Western rat snake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/western%20rat%20snake. Accessed 27 Nov. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

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