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Dictionary

Words, grammatical forms and meanings linked to the ontology.

umbra en · NOUN

Pronunciation

  • /ˈʌmbɹə/
  • (Southern-England) audio
  • ŭmʹbrə

Etymology

Borrowed from Latin umbra (“shadow”). Doublet of umber.

Meanings

  1. The fully shaded inner region of a shadow cast by an opaque object.
  2. The fully shaded inner region of a shadow cast by an opaque object. ▸ The area on the earth or moon experiencing the total phase of an eclipse.
  3. The central region of a sunspot.
  4. (literary) A shadow.
  5. (archaic) An uninvited guest brought along by one who was invited.
  6. One of the family Umbridae of mudminnows.
  7. One of genus Umbrina of drums (family Sciaenidae).
  8. An element of the umbral calculus.
    • In order to set up such an algorithm, we need the notion of multiplicative inverse of an umbra. Two umbrae are said to be multiplicative inverse to each other when αγ ≡ u. 2009, Ernesto Damiani, Ottavio D'Antona, Vincenzo Marra, From Combinatorics to Philosophy: The Legacy of G.-C. Rota, (page 113)#:

Forms

SpellingFeaturesLabelsSource
umbræ Number=Plur obsolete lexicographic
umbrae Number=Plur lexicographic
umbras Number=Plur lexicographic

Coordinates

antumbra · penumbra

Deriveds

Bernoulli umbra · umbra versa · adumbrate · penumbra · umbra recta · umbration · umbral · antumbra · umbraphile · umbrella

Translations (18)

sv kärnskugga (the fully shaded inner area of a shadow) · de Kernschatten (the fully shaded inner area of a shadow) · ca ombra (the fully shaded inner area of a shadow) · da umbra (the central region of a sunspot) · fr ombre (the central region of a sunspot) · fi sydänvarjo (the fully shaded inner area of a shadow) · fi täysvarjo (the fully shaded inner area of a shadow) · de Umbra (the central region of a sunspot) · fi umbra (the central region of a sunspot) · pl cień (the fully shaded inner area of a shadow) · af kernskaduwee (the fully shaded inner area of a shadow) · pl umbra (the central region of a sunspot) · fi umbra (the fully shaded inner area of a shadow) · sh umbra (the fully shaded inner area of a shadow) · ja 本影 (the fully shaded inner area of a shadow) · nn umbra (the central region of a sunspot) · sv umbra (the fully shaded inner area of a shadow) · nb umbra (the central region of a sunspot)