rubber boa

variants: or rubber snake

Definition of rubber boa

: a harmless blunt-tailed snake (Charina bottae) of the family Boidae that is rubbery in smoothness and suppleness of appearance, usually less than 18 inches long, and found in the moister regions of western North America

called also ball snake, two-headed snake

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!

First Known Use of rubber boa

1897, in the meaning defined above

Keep scrolling for more

Learn More about rubber boa

Time Traveler for rubber boa

Time Traveler

The first known use of rubber boa was in 1897

See more words from the same year

Statistics for rubber boa

Cite this Entry

“Rubber boa.” Dictionary, Merriam-Webster, Accessed 24 Jan. 2021.

Comments on rubber boa

What made you want to look up rubber boa? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Spell It

Can you spell these 10 commonly misspelled words?


Anagram puzzles meet word search.

Love words? Need even more definitions?

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