| lead line | Deposits of lead sulfide in the gingiva in areas of chronic inflammation. (05 Mar 2000) |
|---|---|
| lead monoxide | Has been used as an ingredient in external applications such as lead plaster. Synonym: lead oxide (yellow), litharge, massicot. (05 Mar 2000) |
| lead neuropathy | A peripheral neuropathy reportedly seen in chronic lead intoxication; reputedly characterised by wrist-drop, but no convincing modern reports of this are available. (05 Mar 2000) |
| lead oxide | Has been used as an ingredient in external applications such as lead plaster. Synonym: lead oxide (yellow), litharge, massicot. (05 Mar 2000) |
| lead palsy | Paralysis of the extensor muscles of the wrist causing wrist-drop; occurs in lead poisoning. Synonym: lead paralysis. (05 Mar 2000) |
| lead paralysis | Paralysis of the extensor muscles of the wrist causing wrist-drop; occurs in lead poisoning. Synonym: lead paralysis. (05 Mar 2000) |
| lead poisoning | <pharmacology> An environment hazard (for example, from lead-containing paint, leaded gasoline,etc) capable of causing brain damage. (25 Jun 1999) |
| lead radioisotope | <radiobiology> Unstable isotopes of lead that decay or disintegrate emitting radiation. Lead atoms with atomic weights 194-203, 205, and 209-214 are radioactive lead isotopes. (25 Jun 1999) |
| lead stomatitis | Oral manifestation of lead poisoning consisting of a bluish-black line following the contours of the marginal gingiva where lead sulfide has precipitated due to the inflamed environment. (05 Mar 2000) |
| lead storage battery | <chemistry> A battery (used in cars) in which the anode is lead, the cathode is lead coated with lead dioxide, and the electrolyte is a sulfuric acid solution. (09 Jan 1998) |
| lead sulfide | The native form in which lead is chiefly found. Synonym: galena. (05 Mar 2000) |
| lead tetraethyl | Pb(C2H5)4; tetraethylplumbane;an anti-knock compound added to motor fuel; has a toxic action causing anorexia, nausea, vomiting, diarrhoea, tremors, muscular weakness, insomnia, irritability, nervousness, and anxiety; death may occur. Synonym: lead tetraethyl. (05 Mar 2000) Previous: tetraethylammonium, tetraethylammonium chloride, tetraethylammonium ionNext: tetraethyl lead, tetraethylmonothionopyrophosphatelead tetraethyl -->tetraethyl lead <chemical> Tetraethylplumbane. A highly toxic compound used as a gasoline additive. It causes acute toxic psychosis or chronic poisoning if inhaled or absorbed through the skin. Chemical name: Plumbane, tetraethyl- (12 Dec 1998) |
| lead tetroxide | A bright orange-red powder that turns black when heated; used in ointments and plasters. Synonym: red lead, red oxide of lead. (05 Mar 2000) |
| lead-pipe rigidity | The plastic type of rigidity resembling that of a pipe of lead seen in certain forms of parkinsonism. (05 Mar 2000) |
| leader | A sequence near the 5' end of an RNAstrand or the amino terminus of a protein that functions intargeting or regulation. (09 Oct 1997) |