| amphipathic |
An amphipathic (a.k.a. amphiphilic) molecule contains both hydrophobic and hydrophilic groups.The hydrophobic group can be a long carbon chain, with the form: CH3(CH2)n, with 4 < n < 16.The hydrophilic group falls into one of the following categories:# Ionic Molecules#* Anionic (with respect to the charge on the group maintaining hydrophobia). Examples are:#** fatty acids: RCO2-Na+;#** sulfates: RSO4-Na+;#** sulfonates: RSO3-Na+.#* Cationic. ...
출처: en.wikipedia.org/wiki/Amphipathic
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| amplification |
The Vitaphone system was one of the first to use electronic amplification, using Lee De Forest's audion tube. This allowed the sound of the phonograph to be played to a large audience at a comfortable volume.
출처: en.wikipedia.org/wiki/Vitaphone
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| amphibole asbestos |
Amphibole defines an important group of dark-colored rock-forming inosilicate minerals composed of double chain SiO4 tetrahedra linked at the vertices and generally containing ions of iron and/ or magnesium in their structures. In chemical composition and general characteristics they are very similar to the pyroxenes and, like them, fall into three series according to their system of crystallization. ...
출처: en.wikipedia.org/wiki/Amphibole_Asbestos
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| amplexus |
Amplexus is the process when the male frog grasps the female with his front legs while she lays her eggs. At the same time, he fertilizes them with the fluid containing sperm. This mostly happens in the water, but some more terrestrial anurans like the disc-tongued frogs (Discoglossidae) do it on land. ...
출처: en.wikipedia.org/wiki/Amplexus
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| amperage |
In electricity, current refers to electric current, which is the flow of electric charge. Lightning is an example of an electric current, as is the solar wind, the source of the polar aurora. Probably the most familiar form of electric current is the flow of conduction electrons in a metallic wire. This is how the electric company delivers electricity. ...
출처: en.wikipedia.org/wiki/Amperage
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