Êmbolo

n. embolus, clump of undissolved material in the bloodstream (Medicine)

n. piston, plunger, cylindrical part that operates with a plunging motion (Mechanics)

v. polish, shine, make glossy; brush, buff

n. forcer, person or thing that forces; piston, moving cylinder used to compress gas fluid or air

v. ball, make into a ball, form into a ball; lump, form into a lump or lumps; grapple, struggle with, wrestle; entangle, embroil

= plunge.
Nota: De una máquina.
Ex: Of course some terms may be difficult to categorize as stop or non-stop; think, for instance, of machine, lines, plunge.

Plunger, piston

Plunger packing

Piston, plunger

Plunger rod seal