arc cosine

noun
\ (ˌ)är(k)-ˈkō-ˌsīn \
variants: or arccosine
plural arc cosines or arccosines

Definition of arc cosine

: the inverse function of the cosine if y is the cosine of θ, then θ is the arccosine of y abbreviation arccos

First Known Use of arc cosine

circa 1884, in the meaning defined above

Keep scrolling for more

Learn More about arc cosine

Share arc cosine

Dictionary Entries near arc cosine

arc chute

arccos

arc cosecant

arc cosine

arccot

arc cotangent

arccsc

Statistics for arc cosine

Last Updated

14 Jan 2019

Look-up Popularity

Time Traveler for arc cosine

The first known use of arc cosine was circa 1884

See more words from the same year

Comments on arc cosine

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

WORD OF THE DAY

very full or close together

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Bee Cubed

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!