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| of or pertaining to the throat or neck. |
| the depression in the center of the surface of the abdomen indicating the point of attachment of the umbilical cord to the embryo; navel. |
spasm (spāz'əm)
n.
A sudden involuntary contraction of a muscle or group of muscles.
A muscle spasm.
tonic spasm n.
A continuous involuntary muscular contraction. Also called entasia.