| D007477 |
Ions |
An atom or group of atoms that have a positive or negative electric charge due to a gain (negative charge) or loss (positive charge) of one or more electrons. Atoms with a positive charge are known as CATIONS; those with a negative charge are ANIONS. |
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| D008433 |
Mathematics |
The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Mathematic |
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| D008567 |
Membranes, Artificial |
Artificially produced membranes, such as semipermeable membranes used in artificial kidney dialysis (RENAL DIALYSIS), monomolecular and bimolecular membranes used as models to simulate biological CELL MEMBRANES. These membranes are also used in the process of GUIDED TISSUE REGENERATION. |
Artificial Membranes,Artificial Membrane,Membrane, Artificial |
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| D009622 |
Noise |
Any sound which is unwanted or interferes with HEARING other sounds. |
Noise Pollution,Noises,Pollution, Noise |
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| D010710 |
Phosphates |
Inorganic salts of phosphoric acid. |
Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic |
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| D010825 |
Physics |
The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Physic |
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| D055585 |
Physical Phenomena |
The entities of matter and energy, and the processes, principles, properties, and relationships describing their nature and interactions. |
Physical Concepts,Physical Processes,Physical Phenomenon,Physical Process,Concept, Physical,Concepts, Physical,Phenomena, Physical,Phenomenon, Physical,Physical Concept,Process, Physical,Processes, Physical |
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