Standard Lemma guide

toroid

noun · 4 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

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1

noun

Meaning 1

A surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane.

A ring-shaped solid object whose surface is a torus.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: torus

Antonyms: none provided

Broader terms: round shape

Narrower terms: core, magnetic core

4

noun

Meaning 4

the doughnut-shaped object enclosed by a torus

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: solid

Narrower terms: ring, halo, annulus, doughnut, anchor ring

History

Etymology

No etymology was provided for this word.

Across languages

Translations

11 source translations are retained for this English entry.

  • Bulgarian: тороид (toroid) — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • Finnish: toroidi — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • German: Toroid — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • Polish: toroid — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • Russian: тороид (toroid) — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • Spanish: toroide — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • Ukrainian: тороїд (torojid) — surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane
  • Bulgarian: тороид (toroid) — ring-shaped object whose surface is a torus
  • Finnish: toroidi — ring-shaped object whose surface is a torus
  • Polish: toroid — ring-shaped object whose surface is a torus
  • Tagalog: malabagway — ring-shaped object whose surface is a torus