equatorial

play
adjective equa·to·ri·al \ˌē-kwə-ˈtȯr-ē-əl, ˌe-kwə-\

Definition of equatorial

  1. 1a :  of, relating to, or located at the equator or an equator; also :  being in the plane of the equator a satellite in equatorial orbitb :  of, originating in, or suggesting the region around the geographic equator

  2. 2a :  being or having a support that includes two axles at right angles to each other with one parallel to the earth's axis of rotation an equatorial telescope mountb :  extending in a direction essentially in the plane of a cyclic structure (as of cyclohexane) equatorial hydrogens — compare axial

Examples of equatorial in a Sentence

  1. a lush equatorial rain forest that is threatened by rampant development

Recent Examples of equatorial from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'equatorial'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of equatorial

1664


EQUATORIAL Defined for English Language Learners

equatorial

play
adjective

Definition of equatorial for English Language Learners

  • : of or relating to the equator : located at or near the equator


EQUATORIAL Defined for Kids

equatorial

play
adjective equa·to·ri·al \ˌē-kwə-ˈtȯr-ē-əl, ˌe-kwə-\

Definition of equatorial for Students

  1. :  relating to or lying near the equator an equatorial climate


Medical Dictionary

equatorial

play play
adjective equa·to·ri·al \ˌē-kwə-ˈtōr-ē-əl, ˌek-wə-, -ˈtȯr-\

Medical Definition of equatorial

  1. 1:  of, located at, or relating to an equator equatorial diameter

  2. 2:  extending in a direction essentially in the plane of a cyclic structure (as of cyclohexane) equatorial hydrogen atoms—compare axial 2b



Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

a severe test

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

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!