Refers to the phenomenon of sound presented to one ear may be perceived in the other ear by passing around the head by air conduction or through the head by bone conduction.
* * *
cross·over 'krȯ-.sō-vər n
1) an instance or product of genetic crossing-over
2) a crossover interchange in an experiment
crossover adj involving or using interchange of the control group and the experimental group during the course of an experiment <a double-blind \crossover study>
* * *
cross·over (krosґo-vər) 1. the result of the reciprocal exchange of genetic material between chromosomes; see crossing over. 2. see under trial.Medical dictionary. 2011.