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n.
the act of moving smoothly along a surface while remaining in contact with it; "his slide didn't stop until the bottom of the hill"; "the children lined up for a coast down the snowy slope"
v.
to move in a twisting or contorted motion, (especially when struggling); "The prisoner writhed in discomfort"; "The child tried to wriggle free from his aunt's embrace"
adv.
later than usual or than expected; "the train arrived late"; "we awoke late"; "the children came late to school"; "notice came so tardily that we almost missed the deadline"; "I belatedly wished her a happy birthday"
adj.
related to the key issue but not of central importance; "a peripheral interest"; "energy is far from a peripheral issue in the economy"; "peripheral issues"