HAMMER n.
See Hammerhead. -- Hammer hardening, the process of hardening metal by hammering it when cold. -- Hammer shell (Zoöl.), any species of Malleus, a genus of marine bivalve shells, allied to the pearl oysters, having the wings narrow and elongated, so as to give them a hammer-shaped outline; -- called also hammer oyster…
HAY n.
ffluvium from hay, and to the pollen of certain plants. It is also called hay asthma, hay cold, and rose fever. -- Hay knife, a sharp instrument used in cutting hay out of a stack or mow. -- Hay press, a press for baling loose hay. -- Hay tea, the juice of hay extracted by boiling, used as food for cattle, etc. --…