Dictionary

equatorial

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

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

Full Definition of EQUATORIAL

1
a :  of, relating to, or located at the equator or an equator; also :  being in the plane of the equator <a satellite in equatorial orbit>
b :  of, originating in, or suggesting the region around the geographic equator
2
a :  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 mount>
b :  extending in a direction essentially in the plane of a cyclic structure (as of cyclohexane) <equatorial hydrogens> — compare axial

Examples of EQUATORIAL

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

First Known Use of EQUATORIAL

1664

Related to EQUATORIAL

Synonyms
low, tropical
Antonyms
polar

equatorial

adjective equa·to·ri·al \ˌē-kwə-ˈtōr-ē-əl, ˌek-wə-, -ˈtr-\   (Medical Dictionary)

Medical Definition of EQUATORIAL

1
:  of, located at, or relating to an equator <equatorial diameter>
2
:  extending in a direction essentially in the plane of a cyclic structure (as of cyclohexane) <equatorial hydrogen atoms>—compare axial 2b
May 25, 2015
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