Standard Lemma guide

penumbra

noun · 7 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.

  • /pəˈnʌm.bɹə/
  • pĭ-nŭm'brə
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: P IH0 N AH1 M B R AH0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A partially shaded area around the edges of a shadow, especially an eclipse.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A region around the edge of a sunspot, darker than the sun's surface but lighter than the middle of the sunspot.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An area of uncertainty or intermediacy between two mutually exclusive states or categories.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An area that lies on the edge of something; a fringe.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Something related to, connected to, and implied by, the existence of something else that is necessary for the second thing to be full and complete in its essential aspects.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A region of the brain that has lost only some of its blood supply, and retains structural integrity but has lost function.

Definition source: English Wiktionary via Wiktextract

Qualifier: preceded by "ischaemic"

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

a fringe region of partial shadow around an umbra

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: shadow

History

Etymology

From New Latin pēnumbra, from Latin paene (“almost”) + umbra (“shadow”).

Across languages

Translations

48 source translations are retained for this English entry.

  • Afrikaans: halfskaduwee — partially shaded area around a shadow, especially an eclipse
  • Afrikaans: penumbra — partially shaded area around a shadow, especially an eclipse
  • Arabic: شِبْه ظِلّ (šibh ẓill) — partially shaded area around a shadow, especially an eclipse
  • Armenian: կիսաստվեր (kisastver) — partially shaded area around a shadow, especially an eclipse
  • Azerbaijani: ala-kölgə — partially shaded area around a shadow, especially an eclipse
  • Basque: ilunantz — partially shaded area around a shadow, especially an eclipse
  • Belarusian: паўце́нь (pawcjénʹ) — partially shaded area around a shadow, especially an eclipse
  • Bulgarian: полуся́нка (polusjánka) — partially shaded area around a shadow, especially an eclipse
  • Catalan: penombra — partially shaded area around a shadow, especially an eclipse
  • Chinese Mandarin: 半影 (bànyǐng) — partially shaded area around a shadow, especially an eclipse
  • Czech: polostín — partially shaded area around a shadow, especially an eclipse
  • Dutch: halfschaduw — partially shaded area around a shadow, especially an eclipse
  • Esperanto: duonombro — partially shaded area around a shadow, especially an eclipse
  • Finnish: puolivarjo — partially shaded area around a shadow, especially an eclipse
  • Finnish: penumbra — partially shaded area around a shadow, especially an eclipse
  • French: pénombre — partially shaded area around a shadow, especially an eclipse
  • Galician: penumbra — partially shaded area around a shadow, especially an eclipse
  • Georgian: პენუმბრა (ṗenumbra) — partially shaded area around a shadow, especially an eclipse
  • Georgian: ნახევარჩრდილი (naxevarčrdili) — partially shaded area around a shadow, especially an eclipse
  • German: Halbschatten — partially shaded area around a shadow, especially an eclipse
  • Greek: παρασκιά (paraskiá) — partially shaded area around a shadow, especially an eclipse
  • Hebrew: צל חלקי (tsel khelkí) — partially shaded area around a shadow, especially an eclipse
  • Hungarian: félárnyék — partially shaded area around a shadow, especially an eclipse
  • Ido: miombro — partially shaded area around a shadow, especially an eclipse
  • Italian: penombra — partially shaded area around a shadow, especially an eclipse
  • Japanese: 半影 (han'ei) — partially shaded area around a shadow, especially an eclipse
  • Korean: 본그림자 (bon'geurimja) — partially shaded area around a shadow, especially an eclipse
  • Korean: 본영 (bonyeong) — partially shaded area around a shadow, especially an eclipse
  • Malay: penumbra — partially shaded area around a shadow, especially an eclipse
  • Nahuatl: achicehualli — partially shaded area around a shadow, especially an eclipse
  • Polish: półcień — partially shaded area around a shadow, especially an eclipse
  • Portuguese: penumbra — partially shaded area around a shadow, especially an eclipse
  • Romanian: penumbră — partially shaded area around a shadow, especially an eclipse
  • Russian: полуте́нь (poluténʹ) — partially shaded area around a shadow, especially an eclipse
  • Slovak: polotieň — partially shaded area around a shadow, especially an eclipse
  • Spanish: penumbra — partially shaded area around a shadow, especially an eclipse
  • Swedish: penumbra — partially shaded area around a shadow, especially an eclipse
  • Swedish: halvskugga — partially shaded area around a shadow, especially an eclipse
  • Thai: เงามัว (ngao-muua) — partially shaded area around a shadow, especially an eclipse
  • Ukrainian: півті́нь (pivtínʹ) — partially shaded area around a shadow, especially an eclipse
  • Finnish: penumbra — region around a sunspot
  • French: pénombre — region around a sunspot
  • German: Penumbra — region around a sunspot
  • Norwegian Bokmål: penumbra — region around a sunspot
  • Norwegian Nynorsk: penumbra — region around a sunspot
  • Polish: penumbra — region around a sunspot
  • Spanish: penumbra — region around a sunspot
  • Swedish: penumbra — region around a sunspot