Actinotrich – Definition & Meaning


Actinotrich is a term that is not commonly used in everyday language. However, it is a word that is often used in the fields of biology and zoology. In this article, we will explore the definition and meaning of actinotrich, its origin, as well as its associations, synonyms, and antonyms. We will also provide some example sentences to help you understand how to use the word in context.


Actinotrich is a noun that refers to a type of hair that is found on the skin of certain animals. This type of hair is characterized by its spiky appearance, which is caused by the presence of a central shaft surrounded by smaller, radiating shafts.


The word actinotrich is derived from two Greek words: actino, which means “ray” or “beam,” and trichos, which means “hair.” The term was first used in the early 20th century to describe the spiky hair found on certain animals, such as porcupines and hedgehogs.

Meaning in different dictionaries

Actinotrich is not a common word, and it may not be found in all dictionaries. However, if you do find it, the definition will likely be similar to the one provided above.


Actinotrich is primarily associated with animals that have spiky hair, such as porcupines, hedgehogs, and certain types of rodents. It is also associated with the field of zoology and biology, as it is a technical term used in these disciplines.


There are few synonyms for actinotrich, as it is a technical term with a specific meaning. However, some possible alternatives might include “spiky hair,” “radiating hair,” or “quill-like hair.”


As with synonyms, there are few antonyms for actinotrich, as it is a specific term with a specific meaning. However, some possible antonyms might include “smooth hair,” “straight hair,” or “curly hair.”

The same root words

The root words of actinotrich, actino and trichos, can be found in other English words. For example, “actinometer” refers to a device used to measure the intensity of radiation, while “trichology” refers to the study of hair and its diseases.

Example Sentences

  1. The porcupine’s actinotrich hair made it difficult for predators to attack it.
  2. The hedgehog’s actinotrich spines were sharp and dangerous to the touch.
  3. The biologist studied the actinotrich hair of various animals to better understand its structure and function.

While actinotrich is not a commonly used word, it is an important term in the fields of biology and zoology. Its definition, associations, synonyms, and antonyms all contribute to a better understanding of this technical term. By learning about actinotrich, we can gain a deeper appreciation for the diversity of hair types found in the animal kingdom.

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