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(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 ?
But Mr Eustice insisted that the government has based its strategy on repeated studies and trials which found badger culls slow the spread of the disease.
Defra said: "We work with all involved in culls to ensure they continue to be delivered safely.
The two four-year pilot culls in Somerset and Gloucestershire should be completed using the "tried and tested" method of trapping the badgers in cages and then shooting them, the BVA urged.
The federal government is also expected to conduct its own assessment after previously waving through the shark cull trial without investigating the impact of the cull on great white sharks and mako sharks.
The RSPCA said while the culls may Antoinette Sandbach AM not result in the total eradication of badgers in England as a whole, it was possible in certain areas within the cull zones the loss could be total.
Stephen Trotter, chief executive of the trust, said: "The trust is strongly opposed to the cull that started in Somerset.
The Guardian reported that the last-minute delay follows a survey which found there were almost twice as many badgers as previously thought in the cull area - dramatically raising the cost of the plan.
UK Government proposals for pilot culls in England are the worst possible outcome and will do nothing to halt the spread of bovine TB.
Carmarthen Quins: Try - G Cull; con - G Cull; pen - Cull Llanelli: Pens - D Newton (6)
Of course this is despite the fact that the overwhelming scientific evidence, from areas and countries that have had culls of badgers, shows that killing badgers has little or no effect on the spread of bovine TB.
The Welsh Assembly Government said it had not made a final decision about where the cull will be carried out or what method will be used.
Nuns dominated the first half and two penalties from fly-half Cull in 19 minutes made it 6-0.