hyalin
Học thuậtThân thiện
Definition
Noun 1. A glassy, translucent, homogeneous substance: A clear, structureless material that is a major component of certain bodily tissues and can also be found in abnormal deposits under specific pathological conditions.
Usage
- Hyalin is a technical, medical, and biological term. It is used to describe the characteristic appearance of specific normal tissues or abnormal deposits.
- It functions as a mass noun, typically used without a plural form (e.g., "deposits of hyalin").
Examples
- Normal Tissue:
- The matrix of hyalin cartilage provides firm yet flexible support in structures like the nose and trachea.
- Under the microscope, the hyalin appears as a smooth, featureless, pink-staining material.
- Pathological Condition:
- The biopsy revealed hyalin deposition in the dermis, characteristic of the skin condition.
- In this kidney disease, hyalin accumulates within the glomerular capillaries.
Advanced Usage
- Hyalinization (n): The process by which normal tissue is converted into or replaced by a homogeneous, glassy, hyalin-like material. This is often a degenerative change.
- Chronic inflammation led to the hyalinization of the blood vessel wall.
Variants and Related Words
- Hyaline (adj): Having a glassy, translucent appearance. This is the more common adjectival form.
- The pathologist noted the hyaline cartilage and hyaline casts in the urine sample.
- Hyaline cartilage (n phrase): A common type of cartilage with a matrix rich in hyalin, found in joints, the rib cage, and the respiratory tract.
- Hyalinize (v): To become hyaline; to undergo hyalinization.
Synonyms
- Glassy substance
- Translucent matrix (in specific biological contexts)
Notes on Meaning
The term hyalin specifically refers to the substance's physical appearance (glassy, homogeneous, translucent) rather than a single chemical composition. It can be: 1. A normal structural component, as in the ground substance of hyaline cartilage. 2. An abnormal pathological deposit, resulting from the degeneration of proteins (e.g., in blood vessels or skin). The context usually makes the meaning clear.
Noun
- a glassy translucent substance that occurs in hyaline cartilage or in certain skin conditions