| backcross |
the offspring of a hybrid crossed with one or the other of its parents; in the case of interspecific hybrids, with a member of one or the other parent species.
Ãâó: www.csupomona.edu/~jcclark/classes/bio406/glossary...
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|---|---|
| background radiation |
Radiation present in the environment as a result of naturally occurring radioactive materials, cosmic radiation, or human-made radiation sources, including fallout.
Ãâó: www.stoller-eser.com/Annuals/2003/AppendixE.htm
|
| backing |
Materials comprising the back of the carpet, as opposed to the carpet pile or face. For Fusion Bonded Carpets: Backing material for fusion-bonded carpet is a system of layered vinyl or plastic compound and fiberglass scrim for dimensional stability. For Tufted Carpets: Primary back
Ãâó: antron.dupont.com/content/resources/carpet_glossar...
|
| backwash |
The process in which beds of filter or ion exchange media are subjected to flow opposite to the service flow direction to loosen the bed and to flush suspended matter, collected during the service run, to waste.
Ãâó: www.advancedh2o.com/technical/glossary_abc.html
|
| backwash |
The portion of the wash of an aircraft that flows to the rear.
Ãâó: www.combatmagazine.ws/S4/MILTERMS/PARATERM.HTM
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| back | (computer science) a copy of a file or directory on a separate storage device |
|---|---|
| back | someone who takes the place of another (as when things get dangerous or difficult) |
| back | (computer science) a computer file dedicated to storing and updating computer backups |
| back | someone who takes the place of another (as when things get dangerous or difficult) |
| back | directed or facing toward the back or rear |
| back | (used of temperament or behavior) marked by a retiring nature |
| back | retarded in intellectual development |
| back | in or to or toward a past time |
| back | at or to or toward or the back or rear |
| back | in a manner or order or direction the reverse of normal |
| back | moving from one place to another and back again |
| back | lack of normal development of intellectual capacities |
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