Illustrated Companion to the Latin Dictionary/Embolus

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

EM'BOLUS (ἔμβολος). The piston and sucker of a pump, syringe, or other similar contrivance for drawing up and discharging water. (Vitruv. x. 7.) See CTESIBICA MACHINA and SIPHO.