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equinoctial

equinoctial

9.9
Near the equator with warm weather and little seasonal change
  • adjective
  • /ˌɛkwɪˈnɒkʃəl/
translation icon : ecuatorial
  • The equinoctial sun casts almost no shadow at noon in some areas near the equator.

Examples

  • Many tropical plants thrive in conditions that are characteristic of equinoctial climates.

  • The equinoctial rains bring much-needed water to the dry region near the equator.

  • Turns out, the archaeological site of Mount Catequilla is precisely located at 0 0 00 on the equinoctial line.

    Blog text (11)
  • Alexander von Humboldt's Personal Narrative of Travels to the Equinoctial Regions of the New Continent not only provided Darwin with the model on which he eventually constructed his own famous narrative of the Beagle voyage, but it inspired him with a deep and not very scientific longing for the tropics.

    Academic text (1995)

Synonyms

equatorial
vsequinoctial
16 5.2

Near or on the Earth's equator with warm, humid climate

is used for general relation or closeness rather than exact location
tropic
vsequinoctial
1 4.1

Relating to hot, humid regions near the equator

is more neutral about climate and focuses on simple relation to the equator
subequatorial
vsequinoctial
7.5

Areas near the equator but not on it that have warm wet and dry seasons

is broader covering general relation to the equator including nearer locations

Compounds

equinoctial circle
  • Specialized
9.9

An imaginary circle across the sky midway between the north and south poles

equinoctial line
  • Specialized
9.9

An imaginary line in the sky that matches Earth's equator and divides the sky into north and south

equinoctial point
  • Specialized
9.9

A point in the sky where the Sun crosses the Earth's equator at spring or autumn equinox

A strong rainstorm that happens around the spring or autumn equinox

equinoctial year
  • Specialized
8.6

The time Earth takes to go from one spring equinox to the next, about 365.24 days

How Near

equatorial
16 5.2
equinoctial
9.9
tropical
144 3.4
subtropical
7 4.6
temperate
14 3.9
polar
121 4.2

Surface Forms

equinoctial positive

Morphology

equinoctial = equinox (opaque) = equinox + ial

Although formed from 'equinox' + '-ial', this sense meaning 'near the equator' reflects a historical/semantic shift (equinoctial used equatorially) that is not predictable from the base for an average learner.

Etymology

Equinoctial comes from the Latin parts aequus 'equal' and nox 'night', and is related to the words equinox and equator. Because places near the equator have little change in day length, equinoctial came to describe regions 'near the equator'.