pop hole

pop hole

[′päp ‚hōl]
(computer science)
pop
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References in periodicals archive ?
These conditions included the number of pop holes, the number of birds per metre of pop hole, the flock size inside the shed and the shed size.
Until one terrible night, I'd had a somewhat convivial evening at the "Ship" and returned home - sufficient to say that night I had forgotten to close the pop hole into the field.