umbra

(redirected from Umbro)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to Umbro: umbra

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.

um·bra

(ŭm'bră)
radiology An image with sharply defined margins.

umbra

(ŭm′bră) [L., shade, shadow]
The edge of the radiographic image proper.

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.
References in periodicals archive ?
I have been involved in a number of discussions with Umbro over the past few months in preparation for next season and their approach to quality, design and the technical aspects of the product is unique and I have no doubt it will help us to perform to our full potential on the pitch.
A spokesman for Manchester City declined to comment, and an Umbro spokesman said they could find no record of a call about commission.
As well as providing all playing and training kit for various England teams, Umbro holds the rights to the sale and distribution of England replica kit.
It is understood the Toon owner bought his shares at a price above the 195p offered by Nike, which has also led to speculation he may be considering a complete takeover of Umbro.
Nike have agreed to keep Umbro's headquarters in the UK and to conduct business under the Umbro name.
Umbro, based in Cheadle, designs and markets soccer-related apparel, footwear and equipment sold in more than 90 countries.
This dynamic alignment of Umbro and Nike, with our complementary strengths and numerous ways to segment and grow the market, will lead the game at every level throughout the world.
The Centenary season should be a great celebration for everybody connected with Chelsea and we look forward to Umbro sharing in that," said Chelsea chief executive Peter Kenyon.
but also features winners of the new Umbro Isotonic awards for player of the month and goalscorer of the month in each of the three football league divisions.
Umbro spends around 50m [pounds sterling] supporting its brand worldwide and sponsors a host of sporting stars including Liverpool and England footballer Michael Owen.
MERCURY Sport has teamed up with football specialists UMBRO to give one lucky reader a fantastic footy prize.
NYSE:NKE) today announced that it has reached a definitive agreement to sell its Umbro affiliate brand to Iconix Brand Group, Inc.