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 tic is an abrupt, uncontrollable movement or sound that does not relate to a personâs normal gestures. For example, a person suffering from tics may blink rapidly and repeatedly, even if nothing is irritating his or her eyes.here is no sure test to diagnose transient tic disorder and other tic disorders. They are difficult to diagnose, as tics are sometimes associated with other conditions. For example, allergies might be blamed for a repeated sniffing or twitching of the nose.