Flexion response refers to the automatic response of jerking one’s hand or foot away from a hot or sharp object.

Flexitour is defined as a flextime schedule in which employees have flexibility in scheduling but must schedule their work hours at least a week in advance.

Flexor refers to a muscle that flexes a limb. Likewise, Flexors are muscle groups that cause flexion of limbs, that is, decrease the angle at a joint.

Flextime is defined as a work schedule that allows flexible starting and quitting times.

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Flibbertigibbet refers to someone who is regarded as flighty, scatterbrained, and talkative.

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Flicker fusion rate refer to rate that denotes the speed at which two (2) separate visual images appear to fuse visually into a single image.

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Deutsch: Ideenflucht / Español: Fuga de ideas / Português: Fuga de ideias / Français: Fuite des idées / Italiano: Fuga delle idee

Flight of ideas is a formal thought disorder characterized by an accelerated flow of thoughts, rapid speech, and abrupt shifts between topics that are superficially or loosely connected. It is most commonly associated with manic episodes in bipolar disorder but may also occur in other psychiatric conditions, such as schizophrenia or attention-deficit/hyperactivity disorder (ADHD). The phenomenon reflects a disruption in the normal regulation of thought processes, leading to a loss of goal-directed thinking.

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Flight or Fight response is defined as the biological reaction to alarming stressors that musters the body’s resources, as in blood flow and respiration to resist (fight) or flee (flight) a threat.