- 1Bend (a limb or joint): she saw him flex his ankle and winceMore example sentences
- All these bones articulate with other bones and are able to make tiny interdependent movements, as well as bend or flex themselves.
- Over the last few days I've been thinking about all the things I won't be able to do with the limb; flex my ankle, wiggle my toes, point my foot left and right.
- As you flex your ankles, knees and hips, the angle of your front shin with the ground should match the angle of your spine with the ground.
- 1.1 [no object] (Of a limb or joint) become bent: prevent the damaged wrist from flexingMore example sentences
- Simultaneously, he thrusts his shooting arm to full extension, his hand and fingers flexing downward at the wrist in order to impart a gentle backspin as the ball is released.
- Her fingers flexed like the arms and legs of a ballet dancer, fingernails glossy pink, although never polished or buffed.
- Stepping out of his dark blue 1976 convertible, David walked slowly up the driveway, steadily ignoring the way his left hand flexed in and out of a fist.
- 1.2Cause (a muscle) to stand out by contracting or tensing it: bodybuilders flexing their musclesMore example sentences
- They stood before them, flexing their godly muscles.
- But it is eerily impressive, like watching a brilliant young bodybuilder flexing his steroidal muscles.
- Loveable cartoon character Popeye always flexes his biceps when he wants to show off his muscles.
- 1.3 [no object] (Of a muscle) contract or be tensed: a muscle flexed in his jawMore example sentences
- End the movement with the dumbbell over your upper chest and with your pec muscles flexed as hard as possible.
- He was still standing there when she went back into her room, his arms crossed, the thick muscles of his biceps flexing.
- Jim's jaw muscle flexed and he continued to unwrap the shirt bits from Blair's arm.
- 1.4 [no object] (Of a material) be capable of warping or bending and then reverting to shape: set windows in rubber so they flex during an earthquakeMore example sentences
- Over time, as the boot leather flexes, stiffness decreases.
- An experienced player can tell by the stick's vibration whether or not the stick flexes too much.
- A collective puff of expelled breath flexed through the courtyard, liberated pirates rubbing their eyes to be certain the welcome, if not morbid, sight was real.
- 1.5 (usually as adjective flexed) Archaeology Place (a corpse) with the legs drawn up under the chin: a flexed burialMore example sentences
- They did, however, think the skeletons looked very unusual, being very highly flexed, like Peruvian mummies.
- Despite the length of the pit, the proximity of these articulated extremities and the ilium shows that the primary burial was in a flexed position prior to disturbance.
- Some adults and children were subject to secondary processing after initial burial in flexed or extended positions in pits located inside the house.
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- The action or state of flexing: add rigidity and eliminate brake flexMore example sentences
- This new Kenda has low, square knobs that eliminate knob flex and give positive, predictable traction on even the hardest surfaces.
- The idea is to stabilize the scope tube and eliminate tube flex, which is still disaster for a scope.
- The design adds tremendous strength to your whitewater stroke while retaining perfect flex.
flex one's muscles
- see muscle.
early 16th century: from Latin flex- 'bent', from the verb flectere.
Entry from British & World English dictionary
early 20th century: abbreviation of flexible.