معنی کلمه :‌ altimeter

An instrument for taking altitudes, as a quadrant, sextant, etc.

1. An indoor modification of lawn tennis played with small bats, or battledores, and a very light, hollow, celluloid ball, on a large table divided across the middle by a net. 2. A size of photograph a little larger than a postage stamp. To play ping-pong.