MOUND n.
or to leap the mounds. Dryden. Mound bird. (Zoöl.) Same as Mound maker (below). -- Mound builders (Ethnol.), the tribe, or tribes, of North American aborigines who built, in former times, extensive mounds of earth, esp. in the valleys of the Mississippi and Ohio Rivers. Formerly they were supposed to have preceded the…
PLUMB n.
A little mass or weight of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction; a plummet; a plumb bob. See Plumb line, below. Plumb bob. See Bob, 4. -- Plumb joint, in sheet-metal work, a lap joint, fastened by solder. -- Plumb level. See under Level. -- Plumb line. (…