pipette

n (esp in chemistry) slender tube, usu filled by sucking, used in a laboratory for transferring or measuring small quantities of liquids （尤 指用於化学实验的）吸（量）管; 移液管.

pinpoint, pinprick, pins and needles, pint, pint-sized, pinto, pioneer, pioneering, pious, piously, piousness, pip, pip-squeak, pipal (also peepul), pipe, pipe-cleaner, pipe-dream, pipeclay, pipeline, piper, piping, pipit, pippin, piquancy, piquant, piquantly, pique, piquet, piracy, piranha, pirate, piratical, piratically, pirouette, Pisa, piscatorial, Piscean, Pisces, piss, pissed,