ejaculation

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The act of ejaculating.
• noun An abrupt discharge of fluid.
• noun The expulsion of seminal fluid from the urethra of the penis during orgasm.
• noun A sudden short exclamation, especially a brief pious utterance or prayer.

from The Century Dictionary.

• noun The act of throwing or shooting out; a darting or casting forth.
• noun The uttering of exclamations, or of brief exclamatory phrases; that which is so uttered.
• noun Specifically, in physiology, the emission of semen; a seminal discharge: as, the vessels of ejaculation.

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

• noun Archaic or Technical The act of throwing or darting out with a sudden force and rapid flight.
• noun The uttering of a short, sudden exclamation or prayer, or the exclamation or prayer uttered.
• noun (Physiol.) The act of ejecting or suddenly throwing, as a fluid from a duct.

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

• noun The act of throwing or darting out with a sudden force and rapid flight.
• noun The uttering of a short, sudden exclamation or prayer, or the exclamation or prayer uttered.
• noun The act of ejecting or suddenly throwing, as a fluid from a duct.
• noun biology The forcible ejection of semen from the mammalian urethra, a reflex in response to sexual stimulation.

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

• noun an abrupt emphatic exclamation expressing emotion
• noun the discharge of semen in males