noun. A passage for drawing up smoke or air.

noun. Understanding; comprehension.

noun. An act of taking in or absorbing, especially into a living organism.

To take up; take into the hand.

To succor; help.

noun. A pipe or duct or channel leading gas, water, steam, or other liquid upward from below: used of part of a boiler furnace flue-system, in the gas-producer, blast-furnace, and elsewhere; specifically, a flue leading hot gas from the combustion-chamber or smoke-box to the chimney, in gas-making or in boiler-settings.

noun. The act of taking up; lifting.

noun. Perceptive power; apprehension; conception: as, he is quick in the uptake. Scott, Old Mortality, vii. The upcast pipe from the smoke-box of a steam-boiler, leading to the chimney.

transitive verb. To take into the hand; to take up; to help.

noun. undefined

noun. The pipe leading upward from the smoke box of a steam boiler to the chimney, or smokestack; a flue leading upward.

noun. Understanding; apprehension.

noun. understanding, comprehension

noun. absorption, especially of food or nutrient by an organism

noun. a chimney

verb. To take up, to lift.

noun. the process of taking food into the body through the mouth (as by eating)

noun. a process of taking up or using up or consuming

"In blue states, we have out of wedlock abortions instead of out of wedlock births (well, we try to teach birth control but the uptake is never 100%)."

gleg at the uptake  

on the uptake  

abnormality  absorption  accumulation  activation  apoptosis  

apprehension  help  understanding