head cap of the sperm

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• Sperm donation — is the provision (or ‘donation’) by a man, (known as a ‘sperm donor’), of his sperm, with the intention that it be used to impregnate a woman who is not usually the man s sexual partner, in order to produce a child. A sperm donor is the natural… …   Wikipedia

• sperm — sperm1 /sperrm/, n., pl. sperm, sperms for 2. 1. semen. 2. a male reproductive cell; spermatozoon. [1350 1400; ME sperme < LL sperma < Gk spérma seed, equiv. to sper (base of speírein to sow seeds) + ma n. suffix of result] sperm2 /sperrm/, n …   Universalium

• cap — 1. Any anatomic structure that resembles a c. or cover. 2. A protective covering for an incomplete tooth. 3. Colloquialism for restoration of the coronal part of a natural tooth by means of an artificial crown. 4. The nucleotide structure found… …   Medical dictionary

• List of minor characters in Beavis and Butt-Head — The following is a list of characters appearing occasionally on the MTV cartoon series Beavis and Butt head , each with a description. (Please note that other characters with smaller and/or less significant roles in the series sometimes bear the… …   Wikipedia

• Ionians (The) — The Ionians Malcolm Schofield THALES AND OTHERS The Greeks agreed that philosophy had begun with Thales. However they did not know much about his views.1 What survives is mostly a potent legend. Herodotus tells stories of his practical ingenuity …   History of philosophy

• Mister Mind and the Monster Society of Evil — Mister Mind Mister Mind, in artwork from the cover of The Power of Shazam! #40 (1997). Art by Jerry Ordway. Publication information Publisher …   Wikipedia

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• Narrative of the abduction phenomenon — The narrative of the abduction phenomenon is an alleged core of similarity in contents and chronology underlying various claims of forced temporary abduction of humans by apparently otherworldly beings. Proponents of the abduction phenomenon… …   Wikipedia

• List of The Chaser's War on Everything episodes — Contents 1 Series 1 (2006) 2 Series 2 (2007) 3 Series 3 (2009) 4 See also The following is a list of episodes of the Australian satirical televisio …   Wikipedia

• Visual arts by indigenous peoples of the Americas — encompasses the visual artistic traditions of the indigenous peoples of the Americas from ancient times to the present. These include works from South America, Mesoamerica, North America including Greenland, as well as Siberian Yup ik peoples who …   Wikipedia

• Largest organisms — The largest organism found on earth can be measured using a variety of methods. It could be defined as the largest by volume, mass, height, or length. Some creatures group together to form a superorganism, though this cannot truly be classed as… …   Wikipedia