Standard Lemma guide

lacunar

adj · 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

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.

  • lə-k(y)o͞o′nər
  • Received-Pronunciation: /ləˈk(j)uː.nə/
  • Canada, General-American: /ləˈk(j)u.nəɹ/
  • Australian, New-Zealand: /ləˈk(j)ʉː.nə/
  • Scotland: /ləˈk(j)ʉ.nəɾ/
  • Scotland: /lʌˈk(j)ʉ.nʌɾ/
  • India: /laˈk(j)uː.nɜː(ɾ)/
  • India: /laˈk(j)uː.nəɾ/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -uːnə(ɹ)

1

adj

Meaning 1

Of or pertaining to a lacuna.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, relational

Topics: architecture, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: lacunal

Antonyms: none provided

2

noun

Meaning 2

A sunken panel or coffer in a ceiling or a soffit; a ceiling containing panels of this kind.

Definition source: English Wiktionary via Wiktextract

Topics: architecture

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From lacuna + -ar. First attested in 1870.

Learned borrowing from Latin lacūnar. First attested in 1696.