Definitions for "Queen excluder"
a grid of accurately spaced holes or wires through which workers can pass, but not queens or drones
a metal or plastic grill (similar to the wire shelving in refrigerators) that is placed between supers
A device made of wire, wood or zinc (or any combination thereof) having openings of .163 to .164 inch, which permits workers to pass but excludes queens and drones; used to confine the queen to a specific part of the hive, usually the brood nest.