Standard Lemma guide

sphericity

noun · 3 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.

  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The quality of being spherical, being a sphere.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The ratio of the surface area of a given particle to the surface area of a sphere with the same volume.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the roundness of a 3-dimensional object

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: sphericalness, globosity, globularness, rotundity, rotundness

Antonyms: none provided

Broader terms: roundness

History

Etymology

From spheric + -ity. In the geometrical sense, defined by the geologist Hakon Wadell in 1935.

Across languages

Translations

16 source translations are retained for this English entry.

  • Arabic: كُرَوِيَّة (kurawiyya) — quality of being spherical
  • Catalan: esfericitat — quality of being spherical
  • Finnish: pallonmuotoisuus — quality of being spherical
  • French: sphéricité — quality of being spherical
  • Galician: esfericidade — quality of being spherical
  • German: Kugelförmigkeit — quality of being spherical
  • Irish: sféarúlacht — quality of being spherical
  • Italian: sfericità — quality of being spherical
  • Korean: 구형성 (guhyeongseong) — quality of being spherical
  • Polish: sferyczność — quality of being spherical
  • Polish: kulistość — quality of being spherical
  • Portuguese: esfericidade — quality of being spherical
  • Spanish: esfericidad — quality of being spherical
  • Finnish: pallonmuotoisuus — ratio of particle surface area to sphere surface area
  • German: Sphärizität — ratio of particle surface area to sphere surface area
  • Korean: 구형도 (guhyeongdo) — ratio of particle surface area to sphere surface area