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.
Here are all the possible meanings and translations of the word TAT. Princeton's WordNet (0.00 / 0 votes) Rate this definition: cheapness, tackiness, tat, sleaze (noun) tastelessness by virtue of being cheap and vulgar. Thematic Apperception Test, TAT (verb) a projective technique using black-and-white pictures; subjects tell a story about each picture. tat, intertwine (verb) make lacework by knotting or looping