Crossbite is a form of malocclusion where a tooth (or teeth) has a more buccal or lingual position (that is, the tooth is either closer to the cheek or to the tongue) than its corresponding antagonist tooth in the upper or lower dental arch. In other words, crossbite is a lateral misalignment of the dental arches. ==Terminology and classification=...
• (b. t.) To deceive; to trick; to gull. • (n.) A deception; a cheat.
A malocclusion where some of the upper teeth are inside of the lower teeth when a person bites down.
<dentistry> A malocclusion where some of your upper teeth are inside of your lower teeth when you bite down. ... (08 Jan 1998) ... 
(kros´bīt″) malocclusion in which the mandibular teeth are in buccal version (or completely lingual version in posterior segments) to the maxillary teeth. anterior crossbite that in which one or more primary or permanent maxillary incisors are lingual to the mandibular in...
Upper posterior (back) teeth are in crossbite if they erupt and function inside or outside of the arch in the lower posterior teeth. Lower anterior (front) teeth are I crossbite if they erupt and function in front of the upper anterior teeth. A crossbite can be individual teeth or groups of teeth.
Cross'bite' transitive verb To deceive; to trick; to gull. [ Obsolete]Cross'bite` (-bīt`) noun A deception; a cheat. [ Obsolete]
Type: Term Pronunciation: kros′bīt Definitions: 1. An abnormal relationship of one or more teeth of one arch to the opposing tooth or teeth of the other arch due to labial, buccal, or lingual deviation of tooth position, or to abnormal jaw position.
an abnormal relation of one or more teeth, in which the buccal or outside cups of the lower (mandibular) teeth are lateral to the those of the upper (maxillary) teeth.an abnormal bite relation of one or more teeth, in which the tooth (teeth) in one arch (upper or lower) has a more buccal (closer to the cheek) or lingual (closer to the tongue) position than the opposing tooth in the other arch.