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chem·is·try (k m -str )
n.
The science of the composition, structure, properties, and
reactions of matter, especially of atomic and molecular systems.
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phys·ics (f z ks)
n.
(used with a sing. verb) The
science of matter and energy and of interactions between the two,
grouped in traditional fields such as acoustics, optics,
mechanics, thermodynamics, and electromagnetism, as well as in
modern extensions including atomic and nuclear physics,
cryogenics, solid-state physics, particle physics, and plasma
physics.
Physics Lab
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