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
- Candlemas day ‐ feast day commemorating the presentation of Christ in the temple;…
- Creepy ‐ causing a sensation as of things crawling on your skin; "a creepy…
- Queenfish ‐ silvery and bluish drumfish of shallow California…
- Arabia ‐ a peninsula between the Red Sea and the Persian Gulf; strategically…
- Titlark ‐ small songbirds…
- Elder hand ‐ the card player on the…
- Austere ‐ practicing great self-denial; "Be systematically ascetic...do...something…
- Flamboyant tree ‐ tropical shrub or small tree having showy yellow to orange-red…
- Oral cancer ‐ malignant neoplasm of the lips of mouth; most common in men over…
- Shiraz ‐ a city in central southwestern Iran; ruins of ancient Persepolis…