| LA50 | total body surface area of burn that will kill 50% of patients (lethal area) |
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| kill | 1. To deprive of life, animal or vegetable, in any manner or by any means; to render inanimate; to put to death; to slay. "Ah, kill me with thy weapon, not with words !" (Shak) 2. To destroy; to ruin; as, to kill one's chances; to kill the sale of a book. "To kill thine honor." "Her lively colour kill'd with deadly cares." (Shak) 3. To cause to cease; to quell; to calm; to still; as, in seamen's language, a shower of rain kills the wind. "Be comforted, good madam; the great rage, You see, is killed in him." (Shak) 4. To destroy the effect of; to counteract; to neutralize; as, alkali kills acid. To kill time, to busy one's self with something which occupies the attention, or makes the time pass without tediousness. Synonym: To murder, assassinate, slay, butcher, destroy. To Kill, Murder, Assassinate. To kill does not necessarily mean any more than to deprive of life. A man may kill another by accident or in self-defense, without the imputation of guilt. To murder is to kill with malicious forethought and intention. To assassinate is tomurder suddenly and by stealth. The sheriff may kill without murdering, the duelist murders, but does not assassinate his antagonist, the assassin kills and murders. 5. A kiln. 6. A channel or arm of the sea; a river; a stream; as, the channel between Staten Island and Bergen Neck is the Kill van Kull, or the Kills; used also in composition; as, Schuylkill, Catskill, etc. Origin: OE. Killen, kellen, cullen, to kill, strike; perh. The same word as cwellen, quellen, to kill (cf. Quell), or perh. Rather akin to Icel. Kolla to hit in the head, harm, kollr top, summit, head, Sw. Kulle, D. Kollen to kill with the ax. Source: Websters Dictionary (01 Mar 1998) |
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| killdeer | <zoology> A small American plover (aegialitis vocifera). It is dark grayish brown above; the rump and upper tail coverts are yellowish rufous; the belly, throat, and a line over the eyes, white; a ring round the neck and band across the breast, black. Origin: So named from its notes. Source: Websters Dictionary (01 Mar 1998) |
| killer | 1. One who deprives of life; one who, or that which, kills. 2. <zoology> A voracious, toothed whale of the genus Orca, of which several species are known. The killers have a high dorsal fin, and powerful jaws armed with large, sharp teeth. They capture, and swallow entire, large numbers of seals, porpoises, and dolphins, and are celebrated for their savage, combined attacks upon the right whales, which they are said to mutilate and kill. The common Atlantic species (Orca gladiator), is found both on the European and the American coast. Two species (Orca ater and O. Rectipinna) occur on the Pacific coast. Source: Websters Dictionary (01 Mar 1998) |
| killer cell | 1. <immunology> Mammalian cells which can lyse antibody coated target cells. They have a receptor for the Fc portion of IgG and are probably of the mononuclear phagocyte lineage, though some may be lymphocytes. Not to be confused with cytotoxic T-cells which recognise targets by other means and are clearly a sub set of T lymphocytes. This confusion exists in the early literature. 2. Natural killer cell are CD3 negative large granular lymphocytes, mediating cytolytic reactions that do not require expression of Class I or II major histocompatibility antigens on the target cell. 3. Lymphokine activated killer cells are NK cells activated by interleukin-2 (LAK cells). (13 Nov 1997) |
| killer cells | Lymphocyte-like effector cells which mediate antibody-dependent cell cytotoxicity. They kill antibody-coated target cells which they bind with their fc receptors. (12 Dec 1998) |
| killer cells, lymphokine-activated | Cytolytic lymphocytes with the unique capacity of killing natural killer (nk)-resistant fresh tumour cells. They are interleukin-2-activated nk cells that have no MHC (major histocompatibility complex) restriction or need for antigen stimulation. Lak cells are used for adoptive immunotherapy in cancer patients. (12 Dec 1998) |
| killer cells, natural | Cells responsible for spontaneous cytotoxicity of a variety of tumour cells without prior immunization. These natural killer cells are found in non-immune humans and experimental animals and are thought by some to be the same as killer cells (killing by antibody-dependent cell cytotoxicity), but they can also kill in the absence of antibody. (12 Dec 1998) |
| killer plasmid | <molecular biology> These plasmids are found in some strains of Kluyveromyces marxianus where the cells contain multiple cytoplasmic copies of dsDNA plasmids. Such cells secrete a glycoprotein toxin. The plasmids and the killer function can be transferred to yeast. (18 Nov 1997) |
| killer T-cell | 1. <immunology> Mammalian cells which can lyse antibody coated target cells. They have a receptor for the Fc portion of IgG and are probably of the mononuclear phagocyte lineage, though some may be lymphocytes. Not to be confused with cytotoxic T-cells which recognise targets by other means and are clearly a sub set of T lymphocytes. This confusion exists in the early literature. 2. Natural killer cell are CD3 negative large granular lymphocytes, mediating cytolytic reactions that do not require expression of Class I or II major histocompatibility antigens on the target cell. 3. Lymphokine activated killer cells are NK cells activated by interleukin-2 (LAK cells). (13 Nov 1997) |
| killer yeast | <microbiology> A yeast that secretes a toxin that can kill other yeasts. (09 Oct 1997) |
| Killian's bundle | Origin, outer surfaces of thyroid (thyropharyngeal part) and cricoid (cricopharyngeal part, musculus cricopharyngeus; superior or upper oesophageal sphincter muscle) cartilages; insertion, pharyngeal raphe in the posterior portion of wall of pharynx; action, narrows lower part of pharynx in swallowing, the cricopharyngeal part has a sphincteric function for the oesophagus, allowing some voluntary control of eructation and reflux; nerve supply, pharyngeal plexus. Synonym: musculus constrictor pharyngis inferior, cricopharyngeus muscle, laryngopharyngeus, musculus laryngopharyngeus. (05 Mar 2000) |
| Killian's operation | <procedure, surgery> An operation for frontal sinus disease in which the entire anterior wall is removed and the mucous membrane is curetted away. The ethmoid cells are scraped out through an opening in the nasal process of the maxillary bone, and the upper wall of the orbit is removed as well. (05 Mar 2000) |
| Killian's triangle | <anatomy> The triangular-shaped area of the cervical oesophagus bordered by the oblique fibres of the inferior constrictor muscle of the pharynx and the transverse fibres of the cricopharyngeus muscle through which Zenker's diverticulum occurs, and the A-V nodal triangle between the coronary sinus orifice and the ventricular crest. Synonym: laimer triangle. (05 Mar 2000) |
| Killian, Gustav | <person> German laryngologist, 1860-1921. See: Killian's bundle, Killian's operation, Killian's triangle. (05 Mar 2000) |
| killifish | <marine biology> Any one of several small American cyprinodont fishes of the genus Fundulus and allied genera. They live equally well in fresh and brackish water, or even in the sea. They are usually striped or barred with black. Synonym: minnow, and brook fish. Source: Websters Dictionary (21 Jun 2000) |
Synonyms : Cell, K, Cell, Killer, Cells, K, Cells, Killer, K Cell, Killer Cell
Synonyms : Cell, LAK, Cell, Lymphokine-Activated Killer, Cells, LAK, Cells, Lymphokine-Activated Killer, Killer Cell, Lymphokine-Activated, Killer Cells, Lymphokine Activated, LAK Cell, Lymphokine Activated Killer Cells, Lymphokine-Activated Killer Cell
Synonyms : Cell, NK, Cell, Natural Killer, Cells, NK, Cells, Natural Killer, Killer Cell, Natural, NK Cell, Natural Killer Cell
Synonyms : Cyprinodons
| killifish |
small mostly marine warm-water carp-like schooling fishes; used as bait or aquarium fishes or in mosquito control
Ãâó: wordnet.princeton.edu/perl/webwn
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| killer cell |
killer T cell: T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
Ãâó: wordnet.princeton.edu/perl/webwn
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| killer T cell |
T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
Ãâó: wordnet.princeton.edu/perl/webwn
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| Killian's operation |
excision of the anterior wall of the frontal sinus, removal of the diseased tissue, and formation of a permanent communication with the nose.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| Killian-Freer operation |
submucous resection of the nasal septum, including the septal cartilage, vomer, and perpendicular plate of the ethmoid.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| kill | the destruction of an enemy plane or ship or tank or missile |
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| kill | the act of terminating a life |
| kill | end or extinguish by forceful means |
| kill | destroy a vitally essential quality of or in |
| kill | cause to cease operating |
| kill | tire out completely |
| kill | mark for deletion, rub off, or erase, as of writings |
| kill | drink down entirely |
| kill | cause to die |
| kill | cause the death of, without intention |
| kill | deprive of life |
| kill | hit with great force, in sports |
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