Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.
Related to plumbum: kalium
lead (Pb),(led), Do not confuse this word with the verb led (past tense of lead).
A metallic element, atomic no. 82, atomic wt. 207.2.
An electrocardiographic cable with connections within the electronics of the machine designated for an electrode placed at a particular point on the body surface.
1. An electrical conductor carrying current or intermittent signals between an organ or tissue and an electrical or electronic device.
2. The tracing obtained from a particular combination of electrode positions.
A metallic element, atomic no. 82, atomic wt. 207.2; occurs in nature as an oxide or one of the salts, but chiefly as the sulfide, or galena; 210Pb (half-life equal to 22.6 years) has been used in the treatment of certain eye conditions.
[L.] lead (symbol Pb).