A type of rope halter specifically designed to be used for riding horses. It is considered a type of bitless bridle. Ithas two rings set low on the noseband for the purpose of attaching reins. Hors...

Alternative spelling of through-ticketing

A bee (or other creature) that occupies the same hive as another.

(astronomy, physics) dark matter comprising elementary particles whose composition is as yet unknown, but is presumed to be unlike normal protons, neutrons and electrons etc.