Definition

Noun: 1. (Embryology) A two-walled, cup-shaped structure in the developing embryo that forms the foundation for the pigmented and sensory layers of the retina. 2. A small cup-shaped vessel with a rim designed to fit the contour of the eye socket, used for applying medicinal or cleansing solutions to the eyeball. (Note: In British English, this device is typically called an eyebath.)

Usage and Examples

• Embryology Context:

  • The optic vesicle invaginates to form the eyecup.
  • Proper development of the eyecup is crucial for normal vision.

• Medical/Healthcare Context:

  • She used an eyecup to rinse her eye with the prescribed saline solution.
  • Before applying the eyewash, ensure the eyecup is clean.

Advanced Usage

• The term is highly specialized. In general conversation, the device for rinsing eyes is more commonly referred to as an or simply , while the embryological structure is primarily discussed in academic or medical texts.

Variants and Related Words

• Eyebath (n): The British English term for the rinsing device.
• Eye wash cup (n): A more descriptive synonym for the rinsing device.
• Optic cup (n): A synonym for the embryological structure.

Synonyms

• For the device: eye bath, eye wash cup.
• For the structure: optic cup.

Notes on Meaning

This word has two distinct, domain-specific meanings: 1. A key anatomical structure in early eye development. 2. A practical tool for ocular hygiene and treatment.

The meaning is entirely dependent on context (embryology vs. healthcare). There are no phrasal verbs or idioms associated with this technical term.

Noun

1. (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
2. a small vessel with a rim curved to fit the orbit of the eye; use to apply medicated or cleansing solution to the eyeball
   • an eyecup is called an eyebath in Britain