poppethead

[ pop-it-hed ]
/ ˈpɒp ɪtˌhɛd /

noun

a tailstock or headstock of a lathe.

Origin of poppethead

First recorded in 1655–65; poppet + head
Also called poppet, puppet.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019