transcription, транскрипция: [ ō-ˈpər-kyə-ləm ]
noun
( plural oper·cu·la -lə ; also -lums )
Etymology: New Latin, from Latin, cover, from operire to shut, cover
Date: 1681
1. : a body process or part that suggests a lid: as
a. : a horny or shelly plate on the posterior dorsal surface of the foot in many gastropod mollusks that closes the shell when the animal is retracted
b. : the covering of the gills of a fish — see fish illustration
2. : a lid or covering flap (as of a moss capsule)