Pronunciation: [ˈamɐkɹˌɪnə͡l] (IPA) 
Amacrinal is a word pertaining to a type of gland that doesn't have any secretory portion. The phonetic transcription of this word using the International Phonetic Alphabet is /æ.məˈkraɪ.nəl/. The sound of "a" is pronounced as "æ" like in "cat," the letter "m" is pronounced as "m" like in "man," "ə" is pronounced as "uh" like in "sofa," "k" is pronounced as "k" like in "kit," "r" as "r" and "n" as "n" like in "no."
Amacrinal is an adjective that refers to a certain type of biological cell or structure that lacks a specific region or structure. In physiology, it particularly describes certain cells or glands found in the body. These cells or glands lack distinct boundaries or structural divisions, appearing as more homogeneous or integrated units.
The term "amacrinal" is commonly used in the context of the human body's visual system, specifically the retina. In this context, amacrinal cells are interneurons located within the inner plexiform layer of the retina. Unlike other retinal cells, such as photoreceptor cells or ganglion cells, amacrinal cells are not clearly layered or organized, lacking a distinct structure. They are, however, essential for the processing and integration of visual information.
Amacrinal glands, on the other hand, are another example of this term's usage. These glands are found in animal reproductive systems, specifically in the male reproductive tract. Amacrinal glands produce secretions that contribute to the seminal fluid, which assists in the survival and movement of sperm cells.
In summary, the term "amacrinal" is used to describe cells or structures that lack clear divisions or boundaries, appearing more homogeneous or integrated. It finds particular relevance in the fields of visual physiology, describing specific cells within the retina, and in reproductive biology, referring to certain glands in the male reproductive system.
Relating to an amacrine.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
There is no specific etymology available for the word "amacrinal" in traditional dictionaries or language resources. It is possible that "amacrinal" is a scientific or technical term that may have been derived from combining certain root words or morphemes. If the term is specific to a particular field like biology, anatomy, or medicine, it is recommended to consult the relevant scientific literature or experts in the field for a more accurate understanding of its origin.
