upcast

Etymology

From Middle English upcasten, equivalent to up- + cast.

adj

1. Cast up; thrown upward.

noun

1. (bowling) A cast; a throw.
2. (mining) The ventilating shaft of a mine out of which the air passes after having circulated through the mine.
3. (mining) A current of air passed along such a shaft.
4. (Scotland) An upset, as from a carriage.
5. (Scotland) A taunt; a reproach.
6. (computing) A cast from subtype to supertype.
7. A message transmitted via upcasting.

verb

1. (transitive, obsolete) To cast or throw up; to turn upward.
2. (transitive, Scotland) To taunt; to reproach; to upbraid.
3. (transitive, computing) To cast from subtype to supertype.
4. To broadcast a message or data to aircraft or satellites, especially via radio waves; as opposed to uplinking to a specific satellite or aircraft