• WordNet 3.6
    • n uptake the process of taking food into the body through the mouth (as by eating)
    • n uptake a process of taking up or using up or consuming "they developed paper napkins with a greater uptake of liquids"
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Webster's Revised Unabridged Dictionary
    • Uptake The pipe leading upward from the smoke box of a steam boiler to the chimney, or smokestack; a flue leading upward.
    • v. t Uptake To take into the hand; to take up; to help.
    • Uptake Understanding; apprehension.
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Century Dictionary and Cyclopedia
    • n uptake 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.
    • uptake To take up; take into the hand.
    • uptake To succor; help.
    • n uptake The act of taking up; lifting.
    • n uptake 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.
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Chambers's Twentieth Century Dictionary
    • n Uptake up′tāk the act of lifting up:
    • v.t Uptake to take up
    • n Uptake up′tāk (prov.) mental apprehension: the upcast pipe from the smoke-box of a steam-boiler towards the chimney
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On the uptake - If someone is quick on the uptake, they understand something quickly, but if they're slow on the uptake, it takes them a long time to get it.


In literature:

He satisfied himself that this curious result was solely due to a strong uptake of the air.
"The Dominion of the Air" by J. M. Bacon
Every body's no sae gleg at the uptake as ye are yoursell, mither.
"Old Mortality, Complete, Illustrated" by Sir Walter Scott
A bit slow in the uptake, surely?
"Right Ho, Jeeves" by P. G. Wodehouse
Quick though the French are at the uptake, it took the good Commandant just a little while to settle down to the odd position.
"Punch, or the London Charivari, Vol. 153, Sept. 19, 1917" by Various
The distinct knowledge and uptaking of their condition, though it be comfortable and refreshing, yet it is not absolutely necessary.
"Christ The Way, The Truth, and The Life" by John Brown (of Wamphray)
Each boiler is placed fore and aft, and each has a separate uptake and funnel.
"Scientific American Supplement No. 819" by Various
The uptakes from each boiler are constructed of 3/8-inch plate and each is lined with radial hollow brick 4 inches thick.
"The New York Subway" by Anonymous
You are not as quick in the uptake as usual, especially considering your medical qualifications.
"Leaves from a Field Note-Book" by J. H. Morgan
We should say that you were no very gleg in the uptake.
"The Mayor of Troy" by Sir Arthur Thomas Quiller-Couch
That's the uptake of all things, to my mind; I can't abide it.
"The Farringdons" by Ellen Thorneycroft Fowler

In news:

Grant Won to Evaluate Glucose Uptake Inhibitor in Brain Cancer.
I don't know why I am so slow on the uptake sometimes.
Midsize companies are increasing their uptake of CRM, while large, international enterprises are cutting back.
Windows 8's early uptake trumps Vista's.
Generic Clopidogrel Will Contract US Market, Before the Uptake of Novel Agents Increases.
PBMs see little uptake on narrow networks.
Find out exactly how plants take up water from substrates and which factors affect water uptake most.
HD Voice Advantages Increase Uptake .
Ask a friend with Uptake .
MMM > News > Despite HPV vax ad bonanza, low awareness and slacker docs dog uptake .
5, 2011: Increased Awareness of Home Automation Systems Among Homeowners Fuels Uptake .
BSkyB stages UK pitch to boost the uptake of digital.
The uptake was analyzed to gauge the correlation between the subjects' dopamine synthesis capacity and aggressive behavior.
The steady uptake of disposables in critical unit operations suggests that, eventually, single-use bioreactors will be more the rule than the exception, particularly at small- to mid-scale.
Elite athletes already have a such a high VO2max (maximal oxygen uptake) that a small change in oxygen transport and use caused by EPO will have little effect on performance.

In science:

Rather, if the reservoirs are allowed to come into thermal and mechanical contact, a mean value results which optimizes the work output and heat uptake, and is entirely reversible.
The thermodynamics governing 'endoreversible' engines
In this section we establish that the final mean temperature and volume, determined from adiabatic equilibration, yields maximum work output and maximum heat uptake with respect to all other admissible sets of temperatures and volumes.
The thermodynamics governing 'endoreversible' engines
The principle of maximum heat uptake in an isothermal process can be established in a similar manner.
The thermodynamics governing 'endoreversible' engines
This establishes the maximum property of the heat uptake in an isothermal process when the final state has the volume given by (14).
The thermodynamics governing 'endoreversible' engines
Maximum work output and heat uptake arise when the reservoirs, initially at different temperatures or volumes, are allowed to interact, thermally or mechanically, and whose final mean values are determined by adiabatic equilibration.
The thermodynamics governing 'endoreversible' engines