Neurological⭐⭐ Common
Delirium
/dih-LEER-ee-uhm/Simple Meaning:
Sudden, acute disturbance in attention and awareness.
Fluctuating organic mental syndrome involving acute cognitive dysfunction, sleep-wake cycle alteration, and visual hallucinations.
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 4 Medical Terms (Letter "D")Reset Filters
Systemic⭐⭐ Common
Diaphoresis
/dye-uh-fuh-REE-sis/Simple Meaning:
Medical term for excessive, unprovoked sweating.
Profuse sweating triggered by sympathetic nervous system stimulation, associated with acute MI, severe pain, or hypoglycemia.
Neurological⭐⭐ Common
Diplopia
/dih-PLOH-pee-uh/Simple Meaning:
Medical term for double vision.
Perception of a single object as two images, resulting from extraocular muscle imbalance, cranial nerve palsies, or corneal opacity.
Neurological⭐⭐ Common
Disorientation
/dis-or-ee-uhn-TAY-shuhn/Simple Meaning:
Difficulty knowing time, place, or personal identity.
Impairment in cognitive orientation regarding time, space, or person, indicative of acute encephalopathy or delirium.
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