ELM n.
species, much used as a shade tree, particularly in America. The English elm is Ulmus campestris; the common American or white elm is U. Americana; the slippery or red elm, U. fulva. Elm beetle (Zoöl.), one of several species of beetles (esp. Galeruca calmariensis), which feed on the leaves of the elm. -- Elm borer (…
EXHAUST a.
ort (Steam Engine), the opening, in the cylinder or valve, by which the exhaust steam escapes. -- Exhaust purifier (Milling), a machine for sorting grains, or purifying middlings by an exhaust draught. Knight. -- Exhaust steam (Steam Engine), steam which is allowed to escape from the cylinder after having been employ…