Standard Lemma guide

spherometer

noun · 2 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 device used to measure the curvature of a surface, such as a lens.

Definition source: English Wiktionary via Wiktextract

Topics: engineering, natural-sciences, optics, physical-sciences, physics

Examples

  • More precisely, a spherometer directly measures a sagitta (distance between a point and a chord), allowing the radius of curvature to be calculated.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a measuring instrument for measuring the curvature of a surface

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: measuring instrument, measuring system, measuring device

History

Etymology

From sphero- + -meter.

Across languages

Translations

7 source translations are retained for this English entry.

  • Catalan: esferòmetre — measuring device
  • Galician: esferómetro — measuring device
  • Italian: sferometro — measuring device
  • Malay: sferometer — measuring device
  • Portuguese: esferómetro — measuring device
  • Portuguese: esferômetro — measuring device
  • Spanish: esferómetro — measuring device