pitching

from The Century Dictionary.

• In gunnery, noting the fire of cannon at full charge against an object covered in front by a work or a natural obstacle.
• noun The act of throwing or hurling.
• noun A facing of dry stone laid upon a bank as a protection against the wash of waves or current; a lining or sheathing of masonry.
• noun In leather manufacturing, same as bloom, 6 .
• noun In brewing, the admixture of yeast with the wort to initiate fermentation. Also called setting the wort.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of throwing or casting; a cast; a pitch.
• noun The rough paving of a street to a grade with blocks of stone.
• noun (Hydraul. Eng.) A facing of stone laid upon a bank to prevent wear by tides or currents.
• noun (Carp.) the horizontal timber supporting the floor of a platform of a stairway, and against which the stringpieces of the sloping parts are supported.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb Present participle of pitch.
• noun The act of throwing or casting.
• noun The rough paving of a street to a grade with blocks of stone.
• noun engineering A facing of stone laid upon a bank to prevent wear by tides or currents.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun (baseball) playing the position of pitcher on a baseball team
• noun abrupt up-and-down motion (as caused by a ship or other conveyance)