DEAD a.
angle or space which can not be seen or defended from behind the parapet. -- Dead block, either of two wooden or iron blocks intended to serve instead of buffers at the end of a freight car. -- Dead calm (Naut.), no wind at all. -- Dead center, or Dead point (Mach.), either of two points in the orbit of a crank, at…
DEAF-MUTE n.
A person who is deaf and dumb; one who, through deprivation or defect of hearing, has either failed the acquire the power of speech, or has lost it. [See Illust. of Dactylology.] Deaf-mutes are still so called, even when, by artificial methods, they have been taught to speak imperfectly.