How Do You Spell EPITRICHIUM?

Pronunciation: [ˌɛpɪtɹˈɪt͡ʃi͡əm] (IPA)

The word "epitrichium" refers to the layer of cells that covers the base of a developing hair or feather. This term is derived from the Greek words "epi" (meaning on top of) and "trichos" (meaning hair), hence the spelling epi-trigger-ee-uhm /ɛpɪˈtrɪkiəm/. This word may be unfamiliar to many, yet it is commonly used in embryology and can be helpful in understanding the development of hair and feathers in animals. The correct spelling of this term is critical in scientific writing to ensure clarity and accuracy in communication.

EPITRICHIUM Meaning and Definition

1. The epitrichium is a term mainly used in the field of biology to refer to a specialized outer layer of cells that develop during the embryonic stage of certain animals, particularly in birds and reptiles. This layer is formed by the outermost layer of the embryonic epidermis, also known as the periderm.

   The epitrichium acts as a protective covering for the developing embryo and is responsible for preventing dehydration of the skin during the transition into the external environment. It is often described as a thin, translucent, and often waxy layer that covers the surface of the skin and various appendages, such as feathers or scales.

   The presence of the epitrichium is only temporary, as it is shed or worn off shortly before or after hatching. In some cases, the periderm cells undergo programmed cell death, leading to its sloughing off, while in others, it is abraded by the surrounding environment or during the hatching process.

   The significance of the epitrichium lies in its protective function, creating a barrier against mechanical damage, UV radiation, and potential microbial infections. Additionally, the waxy nature of the epitrichium may provide some lubrication, facilitating easy movement during hatching.

   Overall, the epitrichium serves as a crucial adaptation during embryonic development in animals, ensuring their viability in the external environment.

2. A membrane or outer layer of epidermis enveloping the embryo.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for EPITRICHIUM

• epitrichiqm
• epitrichiwm
• epitrichitm
• epitrichiue
• epitrichiui
• epitrichiuo
• epitrichiul
• epitrichighum
• epietrichium
• epi trichium
• epit richium
• epitr ichium
• epitri chium
• epitric hium
• epitrich ium
• epitrichi um
• epitrichiu m

Etymology of EPITRICHIUM

The word "epitrichium" is derived from the combination of two ancient Greek words, "epi" which means "over" or "upon", and "trichos" which translates to "hair". The literal translation of "epitrichium" is "over the hair" or "upon the hair". In the context of biology and anatomy, it refers to the thin layer of cells that covers the skin of a developing embryo or fetus.