- one of a series of satellites for transmitting television pictures of the earth's cloud cover.
Origin of Tiros
t(elevision) i(nfra)r(ed) o(bservational) s(atellite)
- a beginner in learning anything; novice.
Origin of tyro
First recorded in 1605–15, tyro is from the Latin word tīrō recruit
SynonymsSee more synonyms on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tiros
They always do—men and women, veterans and tiros—and Joyce was no exception.The Sixth Sense
If any note were needed here, it might have been devoted to pointing out to tiros the fine subjective touch.Ephemera Critica
John Churton Collins
This picture, labeled "No. 1," was the storm that was picked up in the early orbits of Tiros on the first day of launch, April 1.The Practical Values of Space Exploration
Committee on Science and Astronautics
Tiros are prone to it, because they at first instinctively endeavour to work with arms rather than with body.Boating
W. B. Woodgate
Tiros will be comforted by hearing that if Curtius is less pleasant to read than Livy, he is also less difficult.
- one of a series of US weather satellites carrying infrared and television camera equipment for transmitting meteorological data to the earth
C20: from T (elevision and) I (nfra-) R (ed) O (bservation) S (atellite)
- a variant spelling of tyro
- a novice or beginner
C17: from Latin tīrō recruit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for tiros
1610s, from Medieval Latin tyro, variant of Latin tiro (plural tirones) "young soldier, recruit, beginner," of unknown origin.
Online Etymology Dictionary, © 2010 Douglas Harper