The doctor is performing a test of the patellar reflex on the patient.
- The definition of reflex is something done automatically without thinking about it, or something reflected back.
Hiccuping is an example of something that would be described as a reflex action.
- Reflex is defined as something that you do or think automatically, or a reflection.
When something is flying at your head and you instinctively close your eyes without thinking about it, this is an example of a reflex.
- reflection, as of light
- light or color resulting from reflection
- a reflected image, likeness, or reproduction
- Physiol. a reflex action
- any quick, automatic or habitual response
- [pl.] ability to react quickly and effectively: a boxer with good reflexes
Origin of reflexfrom Classical Latin reflexus, reflected, past participle of reflectere: see reflect
- turned, bent, or reflected back
- coming in reaction or reflection: a reflex effect
- Physiol. designating or of an involuntary action, as a sneeze, resulting from a stimulus that is carried by an afferent nerve to a nerve center and the response that is reflected along an efferent nerve to some muscle or gland
- Electronics designating or of a device, circuit, etc. that has two different functions
- Geom. designating an angle greater than a straight angle (180°)
- to bend, turn, or fold back
- to cause to undergo a reflex process
- Physiology Being an involuntary action or response, such as a sneeze, blink, or hiccup.
- Produced as an automatic response or reaction: reflex opposition to change.
- Bent, turned, or thrown back; reflected.
- a. Physiology An involuntary response to a stimulus.b. reflexes A person's ability to respond to new or changing stimuli: His quick reflexes make him a good taxi driver.
- Psychology An unlearned or instinctive response to a stimulus.
- Linguistics A form or feature that reflects or represents an earlier, often reconstructed, form or feature having undergone phonetic or other change.
- a. Something, such as light or heat, that is reflected.b. An image produced by reflection.c. A copy or reproduction.
Origin of reflexFrom Middle English reflexen to refract light, bend back from Latin reflexus past participle of reflectere to bend back ; see reflect .
(plural reflexes or reflices)
(comparative more reflex, superlative most reflex)
- Bent, turned back or reflected.
- Produced automatically by a stimulus.
- (geometry, of an angle) Having greater than 180 degrees but less than 360 degrees.
- (photography) Of a camera or camera mechanism, using a mirror to reflect the image onto a ground-glass viewfinder, allowing the photographer to see it up to the moment of exposure.
(third-person singular simple present reflexes, present participle reflexing, simple past and past participle reflexed)
From Late Latin reflexus, past participle of reflectere (“to bend back").
reflex - Computer Definition