rockshaft

noun
rock·​shaft | \ ˈräk-ˌshaft How to pronounce rockshaft (audio) \

Definition of rockshaft

: a shaft that oscillates on its journals instead of revolving

First Known Use of rockshaft

circa 1864, in the meaning defined above

Keep scrolling for more

Learn More about rockshaft

Time Traveler for rockshaft

Time Traveler

The first known use of rockshaft was circa 1864

See more words from the same year

Statistics for rockshaft

Cite this Entry

“Rockshaft.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rockshaft. Accessed 28 Nov. 2020.

Comments on rockshaft

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

WORD OF THE DAY

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

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!