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Clinical & Layman Language Dictionary (Deduplicated A–Z)

Medical Terms & Simple Meanings A–Z

Search over 153+ verified medical terms. Clear layman definitions, clinical explanations, frequency ratings (⭐⭐⭐ Very Common), pronunciations, and body system tags.

Showing 9 Medical Terms (Letter "R")Reset Filters
Neurological⭐⭐ Common

Radiating Pain

/RAY-dee-ay-ting payn/
Simple Meaning:

Pain spreading outward from its origin to another area.

Pain traveling along a anatomical dermatome or nerve tract distant from the primary site of tissue injury.

Dermatological⭐⭐⭐ Very Common

Rash

/rash/
Simple Meaning:

Abnormal change in skin color, appearance, or texture.

Widespread eruption of skin lesions including macules, papules, or vesicles.

Neurological⭐⭐ Common

Referred Pain

/rih-FURD payn/
Simple Meaning:

Pain felt in a body location away from its actual source.

Nociceptive sensation perceived at a site distant from the affected visceral organ due to shared spinal cord nerve roots.

General Medical⭐⭐ Common

Recurrent

/rih-KUR-uhnt/
Simple Meaning:

Happening repeatedly over time.

Medical events or disease episodes that return after periods of clinical remission.

Emergency⭐⭐⭐ Very Common

Respiratory Distress

/RES-pir-uh-tor-ee dih-STRES/
Simple Meaning:

Significant difficulty or struggle to breathe.

High-acuity state of respiratory failure characterized by tachypnea, intercostal retractions, cyanosis, and nasal flaring.

Gastrointestinal⭐⭐ Common

Retching

/RECH-ing/
Simple Meaning:

Repeated, involuntary attempts to vomit without expelling contents.

Spasmodic respiratory and abdominal muscle contractions accompanying nausea prior to or following emesis.

Respiratory⭐ Less Common

Rhonchi

/RONG-kee/
Simple Meaning:

Low-pitched abnormal breathing sounds.

Continuous low-pitched gurgling adventitious breath sounds caused by secretions in large airways.

Neurological⭐⭐ Common

Rigidity

/rih-JID-ih-tee/
Simple Meaning:

Abnormal involuntary muscle stiffness or hardness.

Hypertonia displaying constant uniform resistance to passive joint stretch (Lead-pipe or Cogwheel rigidity).

Respiratory⭐⭐⭐ Very Common

Runny Nose

/RUN-ee nohz/
Simple Meaning:

Excess fluid or thin mucus coming from nostrils.

Watery nasal discharge resulting from viral inflammation or allergic rhinitis.

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