tiros

noun U.S. Aerospace.

1. one of a series of satellites for transmitting television pictures of the earth’s cloud cover.

noun, plural ti·ros.

1. tyro.

noun, plural ty·ros.

1. a beginner in learning anything; novice.

noun

1. one of a series of US weather satellites carrying infrared and television camera equipment for transmitting meteorological data to the earth

noun plural -ros

1. a variant spelling of tyro

noun plural -ros

1. a novice or beginner

n.1610s, from Medieval Latin tyro, variant of Latin tiro (plural tirones) “young soldier, recruit, beginner,” of unknown origin.