corona

• اسم له عدة معانٍ: الطبقة الخارجية من الغلاف الجوي للشمس التي تُرى أثناء الكسوف الشمسي؛ الجزء الشبيه بالكأس في بعض الأزهار؛ تفريغ كهربائي؛ هالة ضوء حول جسم مضيء؛ بنية تشريحية شبيهة بالتاج؛ أو نوع من السيجار الطويل.

A noun with multiple meanings: the outermost part of the sun's atmosphere visible during a solar eclipse; a cup-shaped part of certain flowers; an electrical discharge; a circle of light around a luminous object; a crown-like anatomical structure; or a type of long cigar.

1. Solar coronaB2formalscientific

   The outermost region of the sun's atmosphere, visible as a white halo during a total solar eclipse.

   الإكليل الشمسي

   • The solar corona is only visible during a total eclipse.
   • Scientists study the corona to understand solar activity.
   • The temperature of the corona is much higher than the sun's surface.

2. Botanical coronaC1formalscientific

   A trumpet-shaped or cup-shaped outgrowth of the corolla in certain flowers, such as daffodils or narcissi.

   التاج (نباتي)

   • The daffodil's corona is a distinctive yellow cup.
   • Narcissus flowers have a prominent corona in the center.
   • The corona of this species is particularly large and frilled.

   المرادفاتcrowncuptrumpet

3. Electrical coronaC1formalscientific

   An electrical discharge that occurs when a conductor is surrounded by ionized air, often seen as a faint glow.

   كورونا الكهربائية

   • High-voltage power lines can produce a corona discharge.
   • The corona effect is often visible as a blue glow around wires.
   • Engineers design insulators to minimize corona losses.

   المرادفاتcorona discharge

4. Optical coronaC1formalscientific

   One or more circles of light seen around a luminous object, caused by diffraction or scattering.

   الهالة الضوئية

   • A corona appeared around the moon on the foggy night.
   • The streetlight had a faint corona in the mist.
   • Coronas are often observed around the sun through thin clouds.

   المرادفاتaureolehalo

5. Anatomical coronaC2formalmedical

   Any structure in the body that resembles a crown in shape, such as the corona of the glans penis.

   إكليل (تشريح)

   • The corona of the glans is a sensitive anatomical region.
   • Dentists refer to the crown of a tooth as the corona.
   • The coronary arteries supply blood to the heart's corona.

   المرادفاتcrown

6. Cigar typeC1formal

   A long cigar with blunt ends, typically of high quality.

   كورونا

   • He lit a corona after dinner.
   • The cigar shop had a selection of coronas from Cuba.
   • A corona is known for its balanced flavor and smooth draw.