Disease Definition

dĭ-zēz
diseased, diseases, diseasing
noun
Any departure from health; illness in general.
Webster's New World
A particular destructive process in an organ or organism, with a specific cause and characteristic symptoms; specif., an illness; ailment.
Webster's New World
Any harmful or destructive condition, as of society.
Webster's New World
Lack of ease; trouble.
American Heritage
Antonyms:
verb
To cause disease in; infect or derange.
Webster's New World
1590, Edmund Spenser, The Faerie Queene, II.ii.
Mote he soft himselfe appease, / And fairely fare on foot, how euer loth; / His double burden did him sore disease.
Wiktionary

Other Word Forms of Disease

Noun

Singular:
disease
Plural:
diseases

Origin of Disease

  • Middle English disese, from Anglo-Norman desese, disaise, from Old French desaise (dis- +‎ ease). Displaced native Middle English adle, audle (“disease”) (from Old English ādl (“disease, sickness”)), Middle English cothe, coathe (“disease”) (from Old English coþu (“disease”)).

    From Wiktionary

  • Middle English disese from Old French des- dis- aise ease ease

    From American Heritage Dictionary of the English Language, 5th Edition

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