Lead Metal Definition
A semiconductor diode that emits light when a voltage is applied to it and that is used especially in electronic devices as for an indicator light When to Use Lead or Led There is some persistent confusion about lead and led. Spanish nouns have a gender which is either feminine like la mujer or la luna or masculine like el hombre or el sol.
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Naturally occurring lead and a lead cube It is toxic to humans and builds up in the body over time.
Lead metal definition. Lead noun U SUBSTANCE U symbol Pb a chemical element that is a very heavy soft dark grey poisonous metal used especially in the past on roofs and for pipes and also for protection against radiation. Lead is the Eeyore of metals - slow dull and heavy. 210 Pb half-life equal to 226 years has been used in the treatment of certain eye conditions.
Noun lead countable and uncountable plural leads uncountable A heavy pliable inelastic metal element having a bright bluish color but easily tarnished. Lead is soft and malleable and also has a relatively low melting point. Lead is both a noun and a verb as most people know.
In its Latin form plumbum it enters our vocabulary by virtue of its soft and ponderous character. Bluish white when freshly cut but tarnishes readily to dull grey. Occurs in nature as an oxide or one of the salts but chiefly as the sulfide or galena.
The verb lead and the noun lead are homographs. A soft ductile heavy bluish-gray metallic element that is extracted chiefly from galena. One most commonly refers to a metal as in The paint was made with lead and the other most commonly refers to a position of advantage as in Our team was in the lead.
A very reactive soft silvery-white element of the alkali metal group occurring principally in common salt Chile saltpetre and cryolite. The children were playing with lead soldiers. Lead mercury arsenic and cadmium are the metals most commonly associated with heavy metal poisoning in the United States.
The noun lead which rhymes with deed refers to an initiative an example or a position at the front in the lead. The noun lead rhymes with red refers to the metal as in a lead pipe. Lead is a chemical element with the symbol Pb from the Latin plumbum and atomic number 82.
It is used in the production of chemicals in metallurgy and alloyed with potassium as a cooling medium in nuclear reactors. Other heavy metals such as cadmium mercury and lead are highly poisonous. It is a heavy metal that is denser than most common materials.
Lead a soft silvery white or grayish metal in Group 14 IVa of the periodic table. Sodium and potassium ions maintain the essential electrolytic balance in living cells. Lead is very malleable ductile and dense and is a poor conductor of electricity.
Pb led A metallic element atomic no. When freshly cut lead is silvery with a hint of blue. It tarnishes to a dull gray color when exposed to air.
Lead is a soft silver colored heavy metal naturally found in the Earth. Some heavy metals are either essential nutrients typically iron cobalt and zinc or relatively harmless such as ruthenium silver and indium but can be toxic in larger amounts or certain forms. Both malleable and ductile though with little tenacity.
Known in antiquity and believed by the alchemists to be the oldest of metals lead is highly durable and resistant to corrosion. It is easily fusible forms alloys with other metals and is an ingredient of solder and type metal. Lead is used to make radiation shielding and containers for corrosive substances.
M means that a noun is masculine. There are several unrelated nouns spelled lead. You might be exposed to high concentrations of these metals from food air or water pollution as well as medicine food containers with improper coating industrial exposure or lead-based paint.
Words that have the same spelling but differ in meaning and sometimes pronunciation. It is very durable and resistant to corrosion and is a poor conductor of electricity. We once plumbed depths with a suspended grey blob of the stuff emphatically commanded by gravity while plumbers have long since traded their malleable lead pipes for plastic.
Lead - a soft heavy toxic malleable metallic element. Definition of LED Entry 2 of 2. M The buildings lead pipes are going to be replaced with copperLa tuberÃa de plomo del edificio se va a cambiar por cobre.
Here are some complications that may arise from each.
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