Usually means: Darkest part of a shadow.
Definitions Related words Phrases Mentions History Colors (New!) Easter eggs (New!)
We found 39 dictionaries that define the word umbra:

General (23 matching dictionaries)
  1. umbra: Merriam-Webster
  2. Umbra, umbra: Oxford Learner's Dictionaries
  3. umbra: American Heritage Dictionary of the English Language
  4. umbra: Collins English Dictionary
  5. umbra: Vocabulary.com
  6. Umbra, umbra: Wordnik
  7. umbra: Wiktionary
  8. umbra: Webster's New World College Dictionary, 4th Ed.
  9. umbra: The Wordsmyth English Dictionary-Thesaurus
  10. umbra: Infoplease Dictionary
  11. umbra: Dictionary.com
  12. umbra: Online Etymology Dictionary
  13. Umbra (3D technology company), Umbra (album), Umbra (company), Umbra (disambiguation), Umbra (fish), Umbra (poets), Umbra (typeface), Umbra: Wikipedia, the Free Encyclopedia
  14. Umbra: Online Plain Text English Dictionary
  15. umbra: Webster's Revised Unabridged, 1913 Edition
  16. umbra: Rhymezone
  17. Umbra: AllWords.com Multi-Lingual Dictionary
  18. umbra: Webster's 1828 Dictionary
  19. Umbra: E Cobham Brewer, The Reader's Handbook
  20. Umbra: Dictionary of Phrase and Fable (1898)
  21. umbra: FreeDictionary.org
  22. umbra: Mnemonic Dictionary
  23. umbra: TheFreeDictionary.com

Art (1 matching dictionary)
  1. umbra-: A Cross Reference of Latin and Greek Elements

Business (1 matching dictionary)
  1. umbra: Legal dictionary

Computing (1 matching dictionary)
  1. umbra: Encyclopedia

Medicine (3 matching dictionaries)
  1. Dorland's Illustrated Medical Dictionary (No longer online)
  2. online medical dictionary (No longer online)
  3. umbra: Medical dictionary

Miscellaneous (2 matching dictionaries)
  1. UMBRA: Acronym Finder
  2. umbra: Wordcraft Dictionary

Science (4 matching dictionaries)
  1. Umbra: Extragalactic Astronomy
  2. umbra: Nine Planets Glossary
  3. Atmospheric Chemistry and Air Quality (No longer online)
  4. UMBRA, UMBRA: Zoom Astronomy Glossary

Slang (1 matching dictionary)
  1. Umbra: Urban Dictionary

Tech (3 matching dictionaries)
  1. umbra: Lighting Design Glossary
  2. National Weather Service Glossary (No longer online)
  3. SOLAR-TERRESTRIAL TERMS (No longer online)

(Note: See umbrae as well.)

Definitions from Wiktionary (umbra)

noun:  The fully shaded inner region of a shadow cast by an opaque object.
noun:  (astronomy) The area on the earth or moon experiencing the total phase of an eclipse.
noun:  (astronomy) The central region of a sunspot.
noun:  (chiefly literary) A shadow.
noun:  (archaic) An uninvited guest brought along by one who was invited.
noun:  One of the family Umbridae of mudminnows.
noun:  One of genus Umbrina of drums (family Sciaenidae).
noun:  (mathematics) An element of the umbral calculus.

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    charcoal,     graphite,     onyx,     obsidian,     pewter, more...



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