pinocytosis

[ pin-uh-sahy-toh-sis, pahy-nuh- ]
/ ˌpɪn ə saɪˈtoʊ sɪs, ˌpaɪ nə- /

noun Physiology.

the transport of fluid into a cell by means of local infoldings by the cell membrane so that a tiny vesicle or sac forms around each droplet, which is then taken into the interior of the cytoplasm.

QUIZZES

THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST

In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
Question 1 of 10
seclusion

Origin of pinocytosis

1931; <Greek pín(ein) to drink + -o- + -cyte + -osis, on the model of phagocytosis

OTHER WORDS FROM pinocytosis

pin·o·cy·tot·ic [pin-uh-sahy-tot-ik, pahy-nuh-], /ˌpɪn ə saɪˈtɒt ɪk, ˌpaɪ nə-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Medical definitions for pinocytosis

pinocytosis
[ pĭn′ə-sĭ-tōsĭs, -sī-, pī′nə- ]

n.

Introduction of fluids into a cell by invagination of the cell membrane, followed by formation of vesicles within the cells.

Other words from pinocytosis

pin′o•cy•totic (-tŏtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.