nebulae
Definition
- Noun (plural of ):
- Astronomical clouds: "nebulae" are vast clouds of gas and dust in space, often where stars are born or where remnants of dead stars reside.
- Medical term: In medicine, "nebulae" (rare) refers to cloudy or hazy spots on the cornea of the eye, also known as nebula in singular.
Usage Examples
Astronomical:
- The Hubble telescope captured stunning images of distant nebulae. (Large interstellar clouds of gas and dust.)
- Many nebulae are visible through a small telescope. (Cloud-like structures in space.)
Medical:
- The patient was diagnosed with corneal nebulae after the injury. (Cloudy spots on the eye's surface.)
Advanced Usage
"nebulae of gas and dust": a descriptive phrase emphasizing the composition of these cosmic structures.
- The Orion Nebula is one of the brightest nebulae in the night sky. (A specific, well-known cloud.)
"planetary nebulae": a specific type of nebula formed when a dying star sheds its outer layers.
- Planetary nebulae often have beautiful, symmetrical shapes. (Expanding shells of gas from old stars.)
Variants and Related Words
Nebula (n, singular): a single cloud of gas and dust in space.
- The Crab Nebula is a famous supernova remnant.
Nebular (adj): relating to a nebula.
- Nebular theory explains how solar systems form from clouds of gas.
Nebulosity (n): the quality or state of being cloudy or hazy.
- The nebulosity of the galaxy made it difficult to see individual stars.
Synonyms
- Cloud: a visible mass of particles (less specific, but comparable in appearance).
- Haze: a thin, cloudy appearance (used for medical or atmospheric contexts).
Related Idioms
- "Lost in the nebulae": (figurative) referring to something vague or unclear, like being lost in a cloud.
- His explanation was so confusing; I felt lost in the nebulae of his words.
Phrasal Verbs (none directly with "nebulae")
- "To glance at nebulae": to quickly look at or study these objects.
- The astronomer glanced at the nebulae through the telescope.