Also found in: Dictionary, Thesaurus, Medical, Legal, Idioms, Wikipedia.


(chemical engineering)
In a plastics molding operation, material remaining in the transfer chamber after the mold has been filled.
(science and technology)
Material rejected for being below standard grade.


Any building material rejected as being below standard quality.

cull, brack, wrack

A piece of lumber or brick of a quality below the lowest accepted grade or below specifications.
References in periodicals archive ?
Ministers and farmers argue the badger culls are necessary to tackle TB in livestock that can pick up the disease from wild badgers.
Shadow Environment Secretary Maria Eagle added: "The decision to extend these inhumane, ineffective and unscientific culls underlines the Government's disregard for evidence.
THE British Veterinary Association has withdrawn its support for the shooting of free running badgers in the UK Government's controversial pilot culls.
Stopping the culls early could risk making the bTB situation in these areas worse.
Whatever your views on the trial cull, I think it is only likely to be effective alongside a range of other measures including cattle testing and movement control and also vaccination of badgers in the areas around cull zones.
On Thursday, ACT Civil and Administrative Tribunal will inspect the designated reserves as territory government plans to cull more than 1600 eastern grey kangaroo.
The time has come to stop the cull once and for all.
It was patently clear at the end of the initial cull period that the numbers of badgers being killed were way off the intended target.
It argued the proposed cull of badgers in Somerset and Gloucestershire was based on an assertion that at least 70% of the estimated badger population would need to be killed in a given area to have the desired impact.
Natural England is currently considering an application from the cull company for a short extension of two to three weeks so as to maximise the disease control benefits achieved in this first year.
Queen star Brian May yesterday urged the Government to stop "monstrous" plans to cull thousands of badgers in a bid to tackle bovine TB.