About The Word Penumbra
Learn about the word Penumbra to help solve your crossword puzzle. Discover Penumbra definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Penumbra
| Penumbra Definition And Meaning |
|---|
What's The Definition Of Penumbra?
[n] a fringe region of partial shadow around an umbra
Synonyms | Synonyms for Penumbra: Related Terms | Find terms related to Penumbra: See Also | shadow Penumbra In Webster's Dictionary \Pe*num"bra\, n. [NL., fr. L. paene almost + umbra
shade.]
1. An incomplete or partial shadow.
2. (Astron.) The shadow cast, in an eclipse, where the light
is partly, but not wholly, cut off by the intervening
body; the space of partial illumination between the umbra,
or perfect shadow, on all sides, and the full light. --Sir
I. Newton.
Note: The faint shade surrounding the dark central portion of
a solar spot is also called the {penumbra}, and
sometimes {umbra}.
3. (Paint.) The part of a picture where the shade
imperceptibly blends with the light.
|
More Crossword Puzzle Words
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Cross Word Of The Day
- Organic compound ‐ any compound of carbon and another…
- Layup ‐ a basketball shot made with one hand from a position under or…
- Teeming with(p) ‐ filled to overflowing with a vast number of moving or especially…
- Freestanding ‐ standing apart; not attached to or supported by anything; "a…
- Cote d'ivoire ‐ a republic in western Africa on the Gulf of Guinea; one of the…
- Sphacele calycina ‐ California plant with woolly stems and leaves and large white…
- Fan tracery ‐ the carved tracery on…
- Apatura ‐ large Old World…
- Hendrik verwoerd ‐ South African statesman who instituted the policy of apartheid…
- Ulysses grant ‐ 18th President of the United States; commander of the Union armies…