• WordNet 3.6
    • v thicken become thick or thicker "The sauce thickened","The egg yolk will inspissate"
    • v thicken make thick or thicker "Thicken the sauce","inspissate the tar so that it becomes pitch"
    • v thicken make viscous or dense "thicken the sauce by adding flour"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Arrowroot, an antidote for poisoned arrows, is used as a thickener in cooking.
    • v. i Thicken To become thick. "Thy luster thickens when he shines by.""The press of people thickens to the court.""The combat thickens , like the storm that flies."
    • v. t Thicken To make thick (in any sense of the word). "And this may to thicken other proofs."
    • ***
Century Dictionary and Cyclopedia
    • thicken To become thick or thicker. To grow dense.
    • thicken To become deeper or heavier; gain bulk.
    • thicken Of a liquid, to approach more nearly a state of solidity; gain firmer consistency; also, to become turbid or cloudy.
    • thicken To become dark or obscure; specifically, of the weather, etc., to become misty or foggy.
    • thicken To grow more intense, profound, animated, intricate, etc.; become complicated.
    • thicken To gain in number or frequency; hence, to crowd; throng.
    • thicken To become indistinct.
    • thicken To make thick or thicker. To make dense, close, or compact; specifically, to full, as cloth.
    • thicken To increase in depth, or distance between opposite surfaces; hence, figuratively, to make stouter or more substantial; strengthen.
    • thicken Of liquids, to increase the consistency of; inspissate: as, to thicken gravy with flour; also, to render turbid or cloudy.
    • thicken To obscure with clouds or mist; befog.
    • thicken To make more numerous or frequent; redouble: as, to thicken blows.
    • n thicken A spelling of thick 'un (which see, under thick, a.).
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Thicken to make thick or close: to strengthen
    • ***


  • Rebecca West
    “But there are other things than dissipation that thicken the features. Tears, for example.”


Chambers's Twentieth Century Dictionary
A.S. thicce; cog. with Ger. dick.


In literature:

Put this with a quart of milk into the soup kettle with oysters, and stir till it begins to thicken.
"The Community Cook Book" by Anonymous
Even Vera lent a hand, and the stuff boiled and boiled but thickened very slowly and when set out to cool hardened as before.
"Peggy-Alone" by Mary Agnes Byrne
The walls of the urethra around the calculus appear thickened.
"Surgical Anatomy" by Joseph Maclise
But still disasters thickened.
"A Modern History, From the Time of Luther to the Fall of Napoleon" by John Lord
Of course the boys could not help joining the hurrying throng which now was thickening about the stranded whale.
"The Young Alaskans" by Emerson Hough
Further back were white-stemmed aspen-trees gradually thickening into the forest proper.
"The Woman from Outside" by Hulbert Footner
The skin is rarely thickened, the process being usually exceedingly superficial.
"Essentials of Diseases of the Skin" by Henry Weightman Stelwagon
As cream begins to thicken, add gradually three-fourths teaspoon vinegar.
"The Starvation Treatment of Diabetes" by Lewis Webb Hill
Stir until it begins to thicken, pour into a mould and set on the ice.
"The Golden Age Cook Book" by Henrietta Latham Dwight
Make thickening for gravy (not removing the onion or apple).
"The Suffrage Cook Book"

In poetry:

Ah, bird singing late in the gloam
While the evening shadow thickens,
And the dizzy bat-wings roam,
And the faint starlight quickens;
"Lonely Airs" by John Freeman
The tender, sweet Enthusiast,
The bright-eyed maid with hero's soul,
Had watched the thickening shadow cast
O'er all the land, in death and dole.
"The Beauteous Terrorist" by Sir Henry Parkes
There amid the bushes
Were blackbird's nests and thrush's,
Soon to be hidden
In leaves on green leaves thickening,
Boughs over long boughs quickening
Swiftly, unforbidden.
"The Pond" by John Freeman
But ere the purest radiance crowns the green,
Or fairest lustre fills th' expectant grove,
The twilight thickens, and the fleeting scene
Leaves but a hallow'd memory of love!
"Sunset" by Howard Phillips Lovecraft
Years upon years, as a course of clouds that thicken
Thronging the ways of the wind that shifts and veers,
Pass, and the flames of remembered fires requicken
Years upon years.
"Recollections" by Algernon Charles Swinburne
Until, unasked,--I knew not why or wherefore,--
He yielded, bit by bit, his dreary past,
Like gathered clouds that seemed to thicken there for
Some dull down-dropping of their care at last.
"The Station-Master Of Lone Prairie" by Francis Bret Harte

In news:

Beth Tenda and her children — Angel, 8, Jordan, 6, and Michael, 5, shown above, from left — rely on Mobile Meals to deliver a food thickener that helps the children eat.
Thicken with flour and pour over fish.
The plot continues to thicken in Eugene, as the Oregonian 's John Canzano writes.
Reduce by half and add cornstarch to thicken.
Brent Pringle , cheesemaker at Guggisberg Cheese near Charm, checks milk as it thickens to the consistency of soft yogurt.
National brands often add thickeners to their yogurts, which significantly change the yogurt's natural consistency.
Roux is a mixture of flour and fat that, after being slowly cooked over low heat, is used to thicken mixtures such as soups and sauces.
Whisk in the stock and tomato paste and cook over high heat for about 15 minutes or until reduced and slightly thickened.
A New Thickener/ Stabilizer Technology.
Plots thicken on 'Housewives' and 'Bad.
Like Will Ferrell's mustache, the plot of Anchorman 2. has thickened.
Mash squash with the back of a wooden spoon for additional thickening.
Add juice mix to stir- fry and stir until clear and thickened.
You can always make extra roux and use it to thicken future sauces and gravies .
Flour-based gravy is sturdier and actually thickens as it cools.

In science:

They found a true discontinuity between thin and thick disks, with no kinematic or abundance gradient in the thick disk, favoring the merging event hypothesis for the thickening of the disk.
Tidally-triggered disk thickening. II. Results and interpretations
Quinn et al (1993) predicted that the final scale height z0 should increase with radius, i.e. the thickened disk should flare.
Tidally-triggered disk thickening. II. Results and interpretations
Consequent to the central mass concentration, the inner scalelength of the disk decreases, while the disk thickens.
Tidally-triggered disk thickening. II. Results and interpretations
We have studied a sample of 24 edge-on interacting galaxies and compared them to other edge-on isolated galaxies, to investigate the effects of tidal interaction on disk thickening.
Tidally-triggered disk thickening. II. Results and interpretations
Perhaps the simplest interpretation is that v represents a thickening of the 5–brane.
Anomalies and Locality in Field Theories and M theory