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The soft spongy substance in the center of the stems of many
plants and trees, especially those of the dicotyledonous or exogenous
classes. It consists of cellular tissue. |
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The spongy interior substance of a feather. |
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The spinal cord; the marrow. |
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Hence: The which contains the strength of life; the vital or
essential part; concentrated force; vigor; strength; importance; as,
the speech lacked pith. |
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To destroy the central nervous system of (an animal, as a
frog), as by passing a stout wire or needle up and down the vertebral
canal. |