English dictionary of medical terms (77)
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- No:1520 - response
(L. respondere to answer, reply) an action or movement due to the
application of a stimulus.
- No:1521 - restless legs
legs characterized by or showing inability to remain at rest.
- No:1522 - resuscitation
(L. resuscitare to revive) the restoration to life or consciousness
of one apparently dead; it includes such measures as artificial
respiration and cardiac massage.
- No:1523 - retard
characterized by retarded action, said of a drug when it is
supposed to exercise its maximum effect later in the cycle.
- No:1524 - retardation
(L. retardare to slow down, impede) delay; hindrance; delayed
- No:1525 - retention
(L. retentio, from retentare to hold firmly back) 1. the persistent
keeping within the body of matters normally excreted. 2. in cavity
preparation, the prevention of displacement of a restoration. 3.
in orthodontic therapy, the period during which the patient is
wearing an appliance(s) to maintain and stabilize the teeth in the
position into which they were moved.
- No:1526 - retinal
1. pertaining to the retina. 2. the aldehyde of retinol, derived
by the oxidative enzymatic splitting of absorbed dietary carotene,
and having vitamin A activity. In the retina, retinal combines
with opsins to form visual pigments. One isomer, 11-cis retinal
combines with opsin in the rods (scotopsin) to form rhodopsin, or
visual purple. Another, all-trans retinal (trans-r.); visual
yellow; xanthopsin) results from the bleaching of rhodopsin by
light, in which the 11-cis form is converted to the all-trans form.
Retinal also combines with opsins in the cones (photopsins) to form
the three pigments responsible for colour vision. Called also
retinal, and retinene1.
- No:1527 - retinopathy
(retina + -pathy) 1. retinitis (= inflammation of the retina). 2.
retinosis (= degenerative, noninflammatory condition of the
- No:1528 - retraction
(L. retrahere to draw back) 1. the act of drawing back; the
condition of being drawn back. 2. distal movement of teeth,
usually accomplished with an orthodontic appliance.
- No:1529 - retrobulbar
(retro- + L. bulbus bulb) behind the pons.
- No:1530 - retrograde
(retro- + L. gradi to step) 1. moving backward or against the usual
direction of flow. 2. degenerating, deteriorating, or catabolic.
- No:1531 - retrosternal
(retro- + sternum) situated or occurring behind the sternum.
- No:1532 - revaluation
a revised or new evaluation or estimate : reappraisal; the act or
process of revaluating.
- No:1533 - reversible
capable of going through a series of changes in either direction,
forward or backward, as a reversible chemical reaction.
- No:1534 - revulsive
(L. re- back + vellere to draw) 1. effecting revulsion. 2. an
agent causing revulsion; a counterirritant.
- No:1535 - rhagades
(pl. of Gr. rhagas rent) fissures, cracks, or fine linear scars in
the skin, especially such lesions around the mouth or other regions
subjected to frequent movement.
- No:1536 - rheumatoid
(Gr. rheuma flux + eidos form) resembling rheumatism.
- No:1537 - rhinitis
(rhin- + -itis) inflammation of the mucous membrane of the nose.
- No:1538 - rhinopharyngitis
inflammation of the nasopharynx.
- No:1539 - rhinorrhea
(rhino- + Gr. rhoia flow) the free discharge of a thin nasal mucus.
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