logarithm

play
noun log·a·rithm \ˈlȯ-gə-ˌri-thəm, ˈlä-\

Definition of logarithm

  1. :  the exponent that indicates the power to which a base number is raised to produce a given number <the logarithm of 100 to the base 10 is 2>

logarithmic

play \ˌlȯ-gə-ˈrith-mik, ˌlä-\ adjective

logarithmically

play \-mi-k(ə-)lē\ adverb

Origin and Etymology of logarithm

New Latin logarithmus, from log- + Greek arithmos number — more at arithmetic


First Known Use: circa 1616

Other Mathematics and Statistics Terms


LOGARITHM Defined for English Language Learners

logarithm

play
noun log·a·rithm \ˈlȯ-gə-ˌri-thəm, ˈlä-\

Definition of logarithm for English Language Learners

  • mathematics : a number that shows how many times a base number (such as ten) is multiplied by itself to produce a third number (such as 100)


Learn More about logarithm


Seen and Heard

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

WORD OF THE DAY

very important or noticeable

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ