Lys: From 1 Different Sources
(lysi-, lyso-) combining form denoting lysis; dissolution.
The gradual ending of a fever, and the opposite of CRISIS, which signi?es the sudden ending of a fever. It is also used to describe the process of dissolution of a blood clot, or the destruction of CELLS as a result of damage to or rupture of the PLASMA membrane, thus allowing the cell contents to escape.... lysis
An ENZYME present in tears and egg white, lysozyme catalyses the destruction of some bacteria by damaging their walls.... lysozyme
An essential amino acid (see AMINO ACIDS; INDISPENSABLE AMINO ACIDS), lysine was ?rst isolated in 1889 from casein, the principal protein of milk. Like other essential amino acids, it ensures optimum growth in infants and balanced nitrogen metabolism in adults.... lysine
Lysergic acid diethylamide belongs to the ergot group of ALKALOIDS. It has various effects on the brain, notably analgesic and hallucinogenic, thought to be due to its antagonism of 5hydroxytryptamine (5-HT). In small doses it induces psychic states, in which the individual may become aware of repressed memories. For this reason it may help in the treatment of certain anxiety states, if used under skilled supervision. LSD rapidly induces TOLERANCE, however, and psychological DEPENDENCE may occur, although not physical dependence. Serious side-effects include psychotic reactions, with an increased risk of suicide.... lysergic acid diethylamide (lsd)
(American) A pretty young girl Lysette, Lyset, Lysete, Lysetta, Lyseta... lysett
(Greek) Feminine form of Lysimachus; released from battle Lysimachie, Lysimachi, Lysimachee, Lysimacha, Lysimachia, Lysimachea... lysimache
A brown, clear, oily ?uid with antiseptic properties, made from coal-tar and containing 50 per cent CRESOL. When mixed with water it forms a clear soapy ?uid.... lysol
... lyssa is another term for rabies.
A group of rhabdoviruses closely related to the rabies virus. The Australian Bat Lyssa virus is found in flying foxes (fruit bats) and can cause a rabies-like disease in humans. The disease should be handled as for rabies and can be prevented by using rabies vaccine.... lyssa virus
(Greek) Form of Alexandra, meaning “helper and defender of mankind” Lyssana, Lyssann, Lyssane, Lyssanne, Lysan, Lysann, Lysane, Lysanne, Lysana, Lysanna... lyssan
(LSD) an illegal hallucinogenic drug that was formerly used to aid treatment of certain psychological disorders. Side-effects include digestive upsets, dizziness, tingling, anxiety, sweating, dilated pupils, muscle incoordination and tremor. Alterations in sight, hearing, and other senses occur, psychotic effects, depression, and confusion are common, and tolerance to the drug develops rapidly. Because of these toxic effects, LSD is no longer used clinically. See Appendix 12 for a list of street names for illicit drugs.... lysergic acid diethylamide
n. a specific *complement-fixing antibody that is capable of bringing about the destruction (lysis) of whole cells. Names are given to varieties of lysin with different targets; for example, haemolysin attacks red blood cells; leucolysin attacks white cells; and a bacteriolysin targets bacterial cells.... lysin
adj. producing *lysis.... lysogenic
n. an interaction between a *bacteriophage and its host in which a latent form of the phage (prophage) exists within the bacterial cell, which is not destroyed. Under certain conditions (e.g. irradiation of the bacterium) the phage can develop into an active form, which reproduces itself and eventually destroys the bacterial cell.... lysogeny
n. a particle in the cytoplasm of cells that contains enzymes responsible for breaking down substances in the cell and is bounded by a single membrane. Lysosomes are especially abundant in liver and kidney cells. Foreign particles (e.g. bacteria) taken into the cell are broken down by the enzymes of the lysosomes. When the cell dies, these enzymes are released to break down the cell’s components.... lysosome
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