• WordNet 3.6
    • v flex cause (a plastic object) to assume a crooked or angular form "bend the rod","twist the dough into a braid","the strong man could turn an iron bar"
    • v flex bend a joint "flex your wrists","bend your knees"
    • v flex form a curve "The stick does not bend"
    • v flex contract "flex a muscle"
    • v flex exhibit the strength of "The victorious army flexes its invincibility"
    • n flex the act of flexing "he gave his biceps a flex to impress the ladies"
    • ***
Webster's Revised Unabridged Dictionary
    • n Flex Flax.
    • v. t Flex To bend; as, to flex the arm.
    • ***
Century Dictionary and Cyclopedia
    • flex To bend; make a flexure of: specifically said in anatomy of the action of any flexor muscle.
    • n flex An obsolete variant of flax.
    • n flex A point of contrary flexure or a point of inflexion.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Flex to bend or make a flexure of
    • ***


Webster's Revised Unabridged Dictionary
L. flexus, p. p. of flectere, to bend, perh. flectere, and akin to falx, sickle, E. falchion,. Cf. Flinch
Chambers's Twentieth Century Dictionary
L. flexibilis, flexilisflectĕre, flexum, to bend.


In literature:

Livia Cord continued eating, chewing delicately on her food without flexing a muscle or wincing an eyebrow.
"Get Out of Our Skies!" by E. K. Jarvis
He flexed his shoulder in a signal that meant he agreed with Rat's suggestion.
"Starman's Quest" by Robert Silverberg
Private Hooper clenched his fists, and stood flexing his arms, which, through his shirt-sleeves, appeared to be decidedly powerful.
"Uncle Sam's Boys in the Ranks" by H. Irving Hancock
At each tap the tarsi are flexed and quiver for a moment.
"The Glow-Worm and Other Beetles" by Jean Henri Fabre
Again the rigidly flexed forearm cut under his guard and landed on his hairy chin.
"El Diablo" by Brayton Norton
The Duke held Whetstone back until his wind had set to the labor, his muscles flexed, his sinews stretched to the race.
"The Duke Of Chimney Butte" by G. W. Ogden
It was this that prevented his arms and legs from flexing.
"Two Thousand Miles Below" by Charles Willard Diffin
He flexed the muscles of his leg.
"Astounding Stories, April, 1931" by Various
The muscle 12 flexes the thumb.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
They eventually gave me a porous glove that leaked air when you flexed your fingers.
"The Trouble with Telstar" by John Berryman
They started off easily enough, tentatively probing and flexing their mental muscles.
"The Dueling Machine" by Benjamin William Bova
But he was not at all sure; so he stood very still, all his thews flexed, and waited for it to move.
"Ashton-Kirk, Criminologist" by John T. McIntyre
He flexed his scales until each one stood out from his ugly body like a razor-edged knife.
"Before Egypt" by E. K. Jarvis
He flexed his superbly articulated joints in three directions, and I could hear his power unit building up within him to a whining pitch.
"B-12's Moon Glow" by Charles A. Stearns
Rick fitted the arrow's nock to the bowstring, got his fingers in position to draw, and flexed the bow slightly.
"The Pirates of Shan" by Harold Leland Goodwin
He was, so to speak, flexing his mental sinews.
"Command" by William McFee
He flexed his fingers in the control glove and sprayed on nipples.
"Tangle Hold" by F. L. Wallace
Then flex his knees slightly.
"American Red Cross Text-Book on Home Hygiene and Care of the Sick" by Jane A. Delano
He landed with knees flexed, struck level ground, but fell forward with the momentum of the fall.
"The Golden Skull" by John Blaine
He sat up and gingerly flexed his arms and legs.
"Dave Dawson at Dunkirk" by Robert Sydney Bowen

In poetry:

Her legs flexed in the air like a courtesan,
Burning and sweating venomously,
Calmly exposed its belly, ironic and wan,
Clamorous with foul ecstasy.
"A Carrion" by Allen Tate
Till day rose; then under an orange sky
The hills had new places, and wind wielded
Blade-light, luminous black and emerald,
Flexing like the lens of a mad eye.
"Wind" by Ted Hughes
The shape of my living grows in the clear air:
The nerve's machine precision, the long hand
Empty of old skill, flexed knee aware
Of foot groping the changed, uncertain land.
"For 1939" by Paul Engle

In news:

US muscle flexing, or just keeping China in line.
In your Jan 2nd-8th story on women in the workforce, you stated that in World War II American government had to summon up the image of Rosie the Riveter with her flexed muscle in order to get women into the workforce.
Detroit flexing its muscles Upscale sedans, electric vehicles and old-school muscle cars make their debuts at the 2012 North American International Auto show.
Patriots blast Texans to flex AFC muscle.
And Microsoft will flex some muscle when it launches Windows Live ID next year.
Information technology concern Computer Sciences Corporation (CSC) has flexed both fundamental and technical muscle over the past few months.
Shawn Prez (Global Spin Awards), Funkmaster Flex (Hot 97), Clinton Sparks, Kid Capri and Marley.
Flex-N-Gate fined $57,000 by OSHA for worker safety.
Provides Access to 'Flex View' On-Demand Content.
The fairings' top flexes if struck by a container being roughly loaded.
Courtesy of facebook.com/BPTeamUSA American Jerome Singleton is one of many running on Ossur's Flex-Foot Cheetah prosthetics.
Flex-Kleen CT Series dust collectors, which are especially effective for dust problems in drying, grinding, and conveying systems, are designed to operate in process systems environments with minimum maintenance.
The Flexsweep™ attachment is made of advanced technology polymer to flex on impact and absorb repetitive shock.
Osborn says its Flexsweep broom connectors are made of advanced technology polymer to flex on impact and absorb repetitive shock.
The multi-year flex accounts were created by the Kansas Legislature this year in an effort to conserve the life of the Ogallala Aquifer.

In science:

Figure 8.3: Temperature evolution of N (ω) versus ω within the FLEX approximation for U = 8t and hni = 0.875.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Figure 8.4: Comparison of the FLEX and the QMC results on N (ω) versus ω at half-filling for U = 8t and T = 0.5t.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Here, it is seen that the correlated metallic band which forms upon doping the AF Mott-Hubbard insulator is not obtained within FLEX, which appears to cause why the FLEX underestimates λd for U = 8t.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Figure 8.6: Superconducting transition temperature Tc versus U /t within the FLEX approximation for hni = 0.875.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Above, it has been seen that within FLEX λd has a weak dependence on U /t at temperatures between 0.25t and 1.0t.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Related to this is Fig. 8.6 which shows the transition temperature Tc obtained within FLEX as a function of U /t.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
There is a chance that the maximum possible Tc in the 2D Hubbard model is higher than the FLEX estimate.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
In the FLEX calculations, it was also found that a pseudogap opens in the density of states when the strength of the short-range AF fluctuations increases [Dahm and Tewordt 1995].
d_{x^2-y^2}-wave superconductivity and the Hubbard model
For U /t = 4 and at the temperatures where the simulations are carried out, the values of the dx2−y2 -wave eigenvalues of the particle-particle Bethe-Salpeter equation are in agreement with the FLEX calculations.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
When carried out at low temperatures, the FLEX calculations find Tc ’s of order 0.025t.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Furthermore, the comparison of the FLEX and the QMC data suggests that the pairing could be stronger for U = 8t.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
These data were also compared with various other approaches to the Hubbard model, such as the diagrammatic FLEX approximation, the variational and the pro jector Monte Carlo simulations, the dynamical cluster approximation and the one-loop RG calculations.
d_{x^2-y^2}-wave superconductivity and the Hubbard model
Second Order Perturbation Theory (SOPT) and the more elaborate Fluctuation Exchange Approximation (FLEX) are discussed in the following sections. A complementary strong-coupling approach handles the interaction exactly, but treats the coupling to the host Γ in a perturbative expansion.
Quantum Cluster Theories
In the context of quantum cluster theories, the FLEX was first applied within the DCA by Aryanpour et al. (2003a).
Quantum Cluster Theories
V (pp) = −χpp + The FLEX potentials constitute an infinite sum of fluctuation diagrams similar to the series of density fluctuations also known as the Random Phase Approximation, which is in fact a subset of the FLEX.
Quantum Cluster Theories