Ted Pettit, The World's Laziest Excel Power User. Views. x>=y means x is greater than or equal to y. You have to write it that way, x=>y is not allowed. Likewise, x<=y means x is lesser than or equal to y. And, you have to write it that way, x=<y is not allowed.
Freebase(0.00 / 0 votes)Rate this definition: Tic-tac. Tic-tac is a traditional method of signs used by bookmakers to communicate the odds of certain horses. Until the turn of the 21st Century it was a very common sight on racecourses in the UK, but with the advent of mobile technology it is now seldom seen.
A repetitive, rapid, sudden muscular movement or vocalization, usually experienced as involuntary or semivoluntary. 2. A quirk or habit of behavior or language: common phrases that have become verbal tics. intr.v. ticced, ticÂ·cing, tics. To have a tic; produce tics: factors that affect the frequency of ticcing.