TMO

TMO (plural TMOs)

1. (solid state physics) Initialism of transition metal oxide.
2. (rugby) Initialism of television match official.
   • 2021 February 6, Graham Bean, “Scotland beat England at Twickenham for the first time in 38 years”, in The Scotsman‎:

     But before he could take the penalty there was a dramatic intervention from Irish TMO Joy Neville. She had spotted Russell trying to halt Youngs with his outstretched right leg and the Scotland stand-off was punished with ten minutes in the sin-bin.

• MOT, Mot, OMT, OTM, Tom, mot, tom