crossing barrier

crossing barrier

[′krȯs·iŋ ‚bar·ē·ər]
(genetics)
Any of the genetically controlled mechanisms that either prevent or significantly reduce the ability of individuals in a population to hybridize with individuals of other populations.
References in periodicals archive ?
Man who climbed through level crossing barrier and was inches away from speeding train 'one of the most stupid things' senior police officer had ever seen
BY SARAH SCOTT A PSNI vehicle was rammed and a level crossing barrier badly damaged during a police chase yesterday.
POLICE are investigating reports that a car collided with a level crossing barrier, causing delays to trains.
Witnesses said the bus went through a closed crossing barrier, and passengers said they screamed "Stop, stop
At the same time there has been a gradual transition from the earlier Maillefer designs used in Europe with the crossing barrier design (Fig.
A TEENAGER who took his grandfather's car and tried to kill himself by crashing through a level crossing barrier as a train approached has escaped being jailed.
A TEENAGER took his grandfather's car and tried to kill himself by crashing through a Midland level crossing barrier.
The man was killed after hurdling a level crossing barrier after a chase in Enfield, London, about 5.
Tenders are invited for Led Board Railway Crossing Barrier Light One Set Consist 08Nos Led Light For Each Level Crossing
Translink have released CCTV footage of two incidents, one showing a car trapped beneath the level crossing barrier in Coleraine, Co Derry, last year and a lorry that ended up on the wrong side of a barrier in the Templepatrick area of Co Antrim.
A DRIVER who drove under a level crossing barrier as it was closing has been labelled "reckless" and "extremely dangerous".
A MOTORIST who drove under a level crossing barrier as it was closing has been labelled "reckless" and "extremely dangerous".