Solid
Solid is one of the four fundamental states of matter (the others being liquid, gas, and plasma). It is characterized by structural rigidity and resistance to changes of shape or volume. Unlike a liquid, a solid object does not flow to take on the shape of its container, nor does it expand to fill the entire volume available to it like a gas does. The atoms in a solid are tightly bound to each other, either in a regular geometric lattice (crystalline solids, which include metals and ordinary water ice) or irregularly (an amorphous solid such as common window glass).
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Famous quotes containing the word solid:
“Our Constitution ... was not a perfect instrument, it is not perfect yet; but it provided a firm base upon which all manner of men of all races, colors and creeds could build our solid structure of democracy.”
—Franklin D. Roosevelt (1882–1945)
“It has often been a solid Grief to me, when I have reflected on this glorious Nation, which is the Scene of publick Happiness and Liberty, that there are still Crowds of private Tyrants, against whom there neither is any Law now in Being, nor can there be invented any by the Wit of Man. These cruel Men are ill-natured husbands.”
—Richard Steele (1672–1729)
“When much intercourse with a friend has supplied us with a standard of excellence, and has increased our respect for the resources of God who thus sends a real person to outgo our ideal; when he has, moreover, become an object of thought, and, whilst his character retains all its unconscious effect, is converted in the mind into solid and sweet wisdom,—it is a sign to us that his office is closing, and he is commonly withdrawn from our sight in a short time.”
—Ralph Waldo Emerson (1803–1882)