| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 3,902,667,237 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
umbra |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia | 0.01 sec. |
|
|
umbra [um´brah]
the part of a shadow in which there is no light from any light source. a sharp appearance to the edges of a structure on a radiograph.
penumbra 1. Region of very low illumination on a dark background. 2. Zone in which the brightness varies from some illumination to zero (umbra) in the shadow cast by an opaque object intercepting light from an extensive light source. See shadow. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
|
| Mentioned in | ? | References in periodicals archive | ? | Medical browser | ? | Full browser | ? | |||
|---|---|---|---|---|---|---|---|---|---|---|
Byline: BY DARREN FULLERTON LINFIELD talisman Glenn Ferguson was last night named Umbro Northern Ireland Player of the Year for 2008. The final 28 teams will win tickets to the Soccer Aid celebrity match at Wembley, in addition to being supplied with full Umbro kit. ALBION have extended their kit deal with Umbro until 2011. |
Umbro |
umbrellalike Umbrellas Umbrellas Umbrellas Umbrellas Web Design umbrellawort Umbrept Umbrere umbrette Umbri Umbria Umbria Umbria, Italy Umbria, Italy Umbrian Umbrian Umbrian Umbrian language Umbrian language Umbrian School Umbrian-Marchigian Apennines Umbrians Umbrians Umbriel Umbriel Umbriferous umbril Umbrina Umbrina roncador Umbrine Umbro UmbroseUmbrosity UMBS UMBSA UMBSM UMBT UMBTC umbu Umbundu Umbundu language Umbutfo Royal Defence Force Umbutfo Swaziland Defense Force UMBVS UMC UMC1000 Upgrade Program UMCA UMCAO UMCAPS UMCAT UMCB UMCBC UMCC UMCCA UMCCC | ||||||||
| Medical Dictionary |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup |
|---|