eyecup
Học thuậtThân thiện
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
- (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
- 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