Standard Lemma guide

diametral

adj · 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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  • /daɪˈæmɪtɹəl/

1

adj

Meaning 1

Of, relating to, or measured across a diameter.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Contrary; diametrically opposed.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A diameter.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective

Meaning 4

related to or along a diameter

Definition source: Princeton WordNet 3.0

Examples

  • the diametral plane

Meaning relationships

Synonyms: diametric, diametrical

Antonyms: none provided

History

Etymology

From Middle French dyametral, from Medieval Latin diametrālis.

Across languages

Translations

18 source translations are retained for this English entry.

  • Bulgarian: диаметрален (diametralen) — relating to a diameter
  • Catalan: diametral — relating to a diameter
  • French: diamétral — relating to a diameter
  • Galician: diametral — relating to a diameter
  • German: diametral — relating to a diameter
  • Italian: diametrale — relating to a diameter
  • Latin: diametrālis — relating to a diameter
  • Portuguese: diametral — relating to a diameter
  • Romanian: diametral — relating to a diameter
  • Romanian: diametric — relating to a diameter
  • Spanish: diametral — relating to a diameter
  • Swedish: diameter — relating to a diameter
  • Bulgarian: насрещен (nasrešten) — contrary
  • Bulgarian: противоположен (protivopoložen) — contrary
  • French: diamétral — contrary
  • German: diametral — contrary
  • Italian: diametrale — contrary
  • Swedish: diametral — contrary