1

cycloid

play
noun cy·cloid \ˈsī-ˌklȯid\

Definition of cycloid

  1. :  a curve that is generated by a point on the circumference of a circle as it rolls along a straight line

cycloidal

play \sī-ˈklȯi-dəl\ adjective

Illustration of cycloid

Origin and Etymology of cycloid

French cycloïde, from Greek kykloeidēs circular, from kyklos


First Known Use: 1661


2

cycloid

adjective cy·cloid

Definition of cycloid

  1. 1 :  smooth with concentric lines of growth <cycloid scales>; also :  having or consisting of cycloid scales

  2. 2 :  characterized by alternating high and low moods <a cycloid personality>

1847

First Known Use of cycloid

1847


Medical Dictionary

1

cycloid

play
noun cy·cloid \ˈsī-ˌklȯid\

Medical Definition of cycloid

  1. :  a cycloid individual


2

cycloid

adjective cy·cloid

Medical Definition of cycloid

  1. :  relating to, having, or being a personality characterized by alternating high and low moods—compare cyclothymic


Learn More about cycloid


Seen and Heard

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

WORD OF THE DAY

to search out and expose misconduct

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