Standard Lemma guide

equatorial

adj · noun · 8 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˌɛkwəˈtɔːɹiəl/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ɔːɹiəl
  • CMU ARPABET: IY2 K W AH0 T AO1 R IY0 AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Of, near, or relating to the equator.

Definition source: English Wiktionary via Wiktextract

Topics: geography, natural-sciences

Examples

  • That plant is best suited to equatorial climates.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Relating to the midline of any approximately spherical object.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

of a bond, lying approximately in the plane of a ring, perpendicular to its axis

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A kind of telescope mounted so as to have two axes of motion at right angles to each other, one of them parallel to the axis of the Earth, and each carrying a graduated circle, one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adjective

Meaning 5

of or existing at or near the geographic equator

Definition source: Princeton WordNet 3.0

Examples

  • equatorial Africa

Meaning relationships

Synonyms: none provided

Antonyms: polar

6

adjective

Meaning 6

of or relating to conditions at the geographical equator

Definition source: Princeton WordNet 3.0

Examples

  • equatorial heat

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adjective

Meaning 7

of or relating to or at an equator

Definition source: Princeton WordNet 3.0

Examples

  • equatorial diameter

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: telescope, scope

History

Etymology

No etymology was provided for this word.

Across languages

Translations

39 source translations are retained for this English entry.

  • Afrikaans: ewenaars — of, near, or relating to the equator
  • Afrikaans: ekwatoriaal — of, near, or relating to the equator
  • Arabic: اِسْتِوَائِيّ (istiwāʔiyy) — of, near, or relating to the equator
  • Bulgarian: екваториален (ekvatorialen) — of, near, or relating to the equator
  • Catalan: equatorial — of, near, or relating to the equator
  • Chinese Mandarin: 赤道的 (chìdào de) — of, near, or relating to the equator
  • Czech: rovníkový — of, near, or relating to the equator
  • Danish: ækvatorial — of, near, or relating to the equator
  • Dutch: equatoriaal — of, near, or relating to the equator
  • Esperanto: ekvatora — of, near, or relating to the equator
  • Finnish: päiväntasaajan — of, near, or relating to the equator
  • Finnish: ekvatoriaalinen — of, near, or relating to the equator
  • French: équatorial — of, near, or relating to the equator
  • French: équatoriale — of, near, or relating to the equator
  • German: äquatorial — of, near, or relating to the equator
  • Greek: ισημερινός (isimerinós) — of, near, or relating to the equator
  • Hindi: भूमध्यीय (bhūmadhyīya) — of, near, or relating to the equator
  • Hungarian: egyenlítői — of, near, or relating to the equator
  • Italian: equatoriale — of, near, or relating to the equator
  • Japanese: 赤道 (sekidō) — of, near, or relating to the equator
  • Korean: 매우 무더운 (mae'u mudeoun) — of, near, or relating to the equator
  • Norwegian Bokmål: ekvatorial — of, near, or relating to the equator
  • Norwegian Nynorsk: ekvatorial — of, near, or relating to the equator
  • Polish: równikowy — of, near, or relating to the equator
  • Portuguese: equatorial — of, near, or relating to the equator
  • Romanian: ecuatorial — of, near, or relating to the equator
  • Russian: экваториа́льный (ekvatoriálʹnyj) — of, near, or relating to the equator
  • Serbo-Croatian: екваторски — of, near, or relating to the equator
  • Serbo-Croatian: ekvatorski — of, near, or relating to the equator
  • Slovak: rovníkový — of, near, or relating to the equator
  • Slovene: ekvatorialni — of, near, or relating to the equator
  • Spanish: ecuatorial — of, near, or relating to the equator
  • Swedish: ekvatorial — of, near, or relating to the equator
  • Welsh: cyhydeddol — of, near, or relating to the equator
  • Dutch: equatoriaal — kind of telescope
  • German: Äquatorial — kind of telescope
  • Italian: equatoriale — kind of telescope
  • Persian: استوایی (ostovâyi) — kind of telescope
  • Spanish: ecuatorial — kind of telescope