HEADSTOCK
headstock
(noun) the stationary support in a machine or power tool that supports and drives a revolving part (as a chuck or the spindle on a lathe)
Source: WordNet® 3.1
Etymology
Noun
headstock (plural headstocks)
(mining) A headframe.
A part of a machine (such as a lathe or drill) that supports a rotating part
A beam that supports a bell.
A clamp that restrains a cow by the neck.
The part of a lute-type string instrument, such as a guitar, that holds the tuning pegs or tensioning screws of the strings.
(rail) A transverse structural member at the extreme end of a rail vehicle's underframe.
Synonyms
• buffer beam (rail)
Source: Wiktionary
Head"stock`, n. (Mach.)
Definition: A part (usually separate from the bed or frame) for supporting
some of the principal working parts of a machine; as:
(a) The part of a lathe that holds the revolving spindle and its
attachments; -- also called poppet head, the opposite corresponding
part being called a tailstock.
(b) The part of a planing machine that supports the cutter, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition