ex·cur·sion
n 1 a : a movement outward and back or from a mean position or axis <the difference in the of the femur in the bipedal gait of humans and the chimpanzee> b : the distance traversed 2 : one complete movement of expansion and contraction of the lungs and their membranes (as in breathing) .
Similar sounding terms: ex·co·ri·a·tion ex·cre·tion
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