FROST n.
the atmosphere in time of severe cold. The brig and the ice round her are covered by a strange black obscurity: it is the frost smoke of arctic winters. Kane. -- Frost valve, a valve to drain the portion of a pipe, hydrant, pump, etc., where water would be liable to freeze. -- Jack Frost, a popular personification of…
FRUIT n.
d vessels of certain plants, especially those grown on branches above ground, as apples, oranges, grapes, melons, berries, etc. See 3.
GEAR n.
its skeleton. See Mortise wheel, under Mortise. -- Expansion gear (Steam Engine), the arrangement of parts for cutting off steam at a certain part of the stroke, so as to leave it to act upon the piston expansively; the cut-off. See under Expansion. -- Feed gear. See Feed motion, under Feed, n. -- Gear cutter, a ma…