stratum lucidum
Noun: * A specific epidermal layer: The stratum lucidum is a thin, clear layer of dead skin cells found in the epidermis, specifically in areas of thick skin like the palms of the hands and the soles of the feet. It is located directly beneath the stratum corneum.
The term is used in anatomical, dermatological, and biological contexts to describe a precise structural component of the skin. * The stratum lucidum is most prominent in skin that experiences high levels of friction. * Under the microscope, the stratum lucidum appears as a translucent band. * This layer, the stratum lucidum, is absent in most other areas of the body.
- Histological identification: In histology, the presence of a distinct stratum lucidum is a key microscopic feature used to identify "thick skin" (glabrous skin) as opposed to "thin skin" (hairy skin).
- The biopsy confirmed it was from glabrous skin due to the visible stratum lucidum.
- Epidermis (n): The outermost layer of the skin, which contains the stratum lucidum.
- Stratum corneum (n): The outermost layer of the epidermis, composed of dead, keratinized cells, located directly above the stratum lucidum.
- Stratum granulosum (n): The granular layer of the epidermis, located directly beneath the stratum lucidum.
- Keratinocyte (n): The primary cell type of the epidermis, which moves through the layers, including the stratum lucidum, during maturation.
- Clear layer: A direct descriptive synonym often used in anatomical texts.
This is a highly specialized scientific term with only one primary meaning related to skin anatomy. It does not have common idiomatic or figurative uses.
- the layer of epidermis immediately under the stratum corneum in the skin of the palms and soles