CUTICLE Meaning and
Definition
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The cuticle is a thin, protective layer that covers the outer surface of an organism or an object. In biology, the cuticle refers to the waxy or fatty coating present on the surface of an organism, such as plants, insects, or certain vertebrates. It acts as a protective barrier, shielding the organism from environmental stressors including water loss, excessive sunlight, harmful chemicals, and pathogenic microorganisms.
In plants, the cuticle is primarily composed of a complex mixture of waxes and lipids secreted by epidermal cells. It forms a waterproof layer that helps to prevent excessive transpiration and dehydration, while also providing mechanical support. In insects, the cuticle serves a similar purpose, protecting the exoskeleton and preventing water loss.
In anatomy, the cuticle refers to the non-living, hardened layer of skin found at the base of the fingernails and toenails. It is composed of a tough protein called keratin and helps to seal and protect the nail bed.
In general, the term 'cuticle' describes any outer layer that serves as a protective covering. It can also refer to the delicate, transparent layer covering the eye of a reptile or bird, as well as the outermost layer of an insect's compound eye.
Overall, the cuticle plays a vital role in safeguarding organisms and objects, providing a barrier against potential damage from the environment and maintaining their overall integrity.
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Epidermis or outer horny layer of the skin.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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The thin exterior coat of the skin; the scarf skin; the thin external covering of a plant.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Etymology of CUTICLE
The word "cuticle" has its origins in Latin. It is derived from the Latin word "cuticula", which literally means "a little skin". "Cuticula" is the diminutive form of "cutis", meaning "skin" or "hide". The term was then adopted into English in the early 17th century to refer to the outer layer of skin or the thin layer on the surface of certain organisms (such as insects or plants).
Similar spelling words for CUTICLE
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