me·a·tus 
(mē-ātəs)
(mē-ātəs)n. pl. me·a·tus·es or meatus
A body opening or passage, such as the opening of the ear or the urethral canal.
[Latin meātus, passage, from past participle of meāre, to pass; see mei-1 in the Appendix of Indo-European roots.]
me·atal (-təl) adj.
- circler
- circlet
- circle the wagons
- circuit
- circuit board
- circuit breaker
- circuit court
- circuitous
- circuitously
- circuitousness
- circuit rider
- circuitry
- circuit training
- circuity
- circular
- circular file
- circular function
- circularity
- circularization
- circularize
- circularizer
- circularly
- circular measure
- circular mil
- circular saw