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vi·rus

/ˈvīrəs/

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Origin

late Middle English (denoting the venom of a snake): from Latin, literally ‘slimy liquid, poison’. The earlier medical sense, superseded by the current use as a result of improved scientific understanding, was ‘a substance produced in the body as the result of disease, especially one capable of infecting otheco·ro·na¹

/kəˈrōnə/

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noun

noun: corona; plural noun: coronae

1. 1.

   ANATOMY

   a part of the body resembling or likened to a crown.
2. 2.

   ASTRONOMY

   the rarefied gaseous envelope of the sun and other stars. The sun's corona is normally visible only during a total solar eclipse, when it is seen as an irregularly shaped pearly glow surrounding the darkened disk of the moon.

   • PHYSICS

     the glow around a conductor at high potential.

     noun: corona discharge; plural noun: corona discharges
   • a small circle of light seen around the sun or moon, due to diffraction by water droplets.
3. 3.

   BOTANY

   the cup-shaped or trumpet-shaped outgrowth at the center of a daffodil or narcissus flower.
4. 4.

   a circular chandelier in a church.
5. 5.

   ARCHITECTURE

   a part of a cornice having a broad vertical face.

Origin

mid 16th century (in corona¹ (sense 5)): from Latin, ‘wreath, crown’.

co·ro·na²

/kəˈrōnə/

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noun

noun: corona; plural noun: coronas

1. a long, straight-sided cigar.

Origin

late 19th century: from Spanish La Corona, literally ‘the crown’, originally a proprietary name.rs’.