• 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

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