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avascular
This term is primarily used in medical and biological contexts to describe tissues or organs that do not contain blood vessels. It carries a neutral, clinical tone and is used to explain how certain body parts, such as the cornea or cartilage, obtain nutrients through diffusion rather than through a direct circulatory system.
In a pathological context, the term often appears in "avascular necrosis," referring to the death of bone tissue due to a lack of blood supply. This specific usage shifts the connotation from a natural biological state to a diseased or injured state.
Meanings
Examples
The cornea is an avascular tissue to ensure maximum transparency for light.
Cartilage is avascular and relies on diffusion from surrounding fluids for nutrients.
Is the lesion avascular or does it show signs of angiogenesis?
The epidermis is primarily avascular and receives oxygen from the dermis below.
I wonder why avascular necrosis happens more often in certain joints.
The lens of the eye must remain avascular to function properly.
Because the area is avascular it takes much longer to heal after an injury.
The biopsy confirmed that the tumor was largely avascular in its center.
Certain types of connective tissue are naturally avascular.
Certain types of connective tissue are naturally avascular.