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Element

Definition

noun, plural: elements

(physics, chemistry) A substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with identical number of protons.

(general)

(1) A fundamental component of a composite entity (such as a vessel element that makes up the vessels in angiosperms).

(2) A place or condition best suited or most favorable for an individual (e.g. water is the element of fishes).

(3) Any of the formerly theorized building blocks of material universe: water, earth, fire and air.


Supplement

Common examples of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen. The combination of these elements form a compound. For instance, the combination of sodium and chlorine atoms results in the formation of a table salt or sodium chloride.


Word origin: from Latin elementum.
Related forms: elemental (adjective)

See also: compound

Related terms:


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Re: sterilization in microwave oven

... I wrote was to describe how heating steam in a microwave was different to other methods of conductive heat like autoclaves or pressure cookers or element heaters. Autoclaves work under pressure but before they pressurise them selves they actually evacuate the containing air so the resulting gas ...

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by brzezinski2
Sun Sep 06, 2009 6:32 am
 
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Cell counting question

... has a high error rate on both low and high concentrations (and pretty high error rate even in the between), because almost always there's some element like pipetting error, cell sedimentation, counting error, bad moon phase or all those combined that affect the outcome. That being said, it ...

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by biohazard
Fri Aug 21, 2009 6:05 am
 
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Topic: Cell counting question
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Re: The Colin Leslie Dean species paradox

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by AFJ
Sat Jul 18, 2009 5:03 pm
 
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by biohazard
Wed Jul 15, 2009 11:20 am
 
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Topic: A question from Cloning
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Lentivirus vector propagation

i'm an yeast person, so I am totally out of my element, but I would just look at what species that virus species normally infects and then start from there.

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by MrMistery
Tue Jun 30, 2009 2:20 am
 
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Topic: Lentivirus vector propagation
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