Amphidial – Definition & Meaning


Amphidial is a term that is not commonly used in everyday language, but it has a specific meaning in the field of biology. In this article, we will explore the definition and meaning of amphidial, its origin, associations, synonyms, antonyms, and root words.


Amphidial is an adjective that refers to the presence of amphids, which are sensory organs found in nematodes, a type of roundworm. These sensory organs are located on the head of the nematode and are responsible for detecting chemical signals in the environment.


The term amphidial is derived from the Greek word “amphi” which means “on both sides” and “eidēsis” which means “perception”. This reflects the location and function of the sensory organs on both sides of the nematode’s head.

Meaning in different dictionaries

Amphidial is not a commonly used term, and therefore, it may not be found in all dictionaries. However, some biology and medical dictionaries provide definitions and explanations of the term.
According to the Merriam-Webster dictionary, amphidial means “of or relating to amphids”. The Free Dictionary defines amphidial as “pertaining to or having amphids”.


Amphids are important sensory organs in nematodes, and their function is essential for the survival and reproduction of these organisms. They are involved in detecting chemical signals in the environment, such as food sources, potential mates, and predators.
In addition, amphids have been studied for their potential use in pest control. Researchers have investigated the use of nematodes that are attracted to specific chemicals detected by their amphids as a means of controlling insect pests.


There are no commonly used synonyms for amphidial, as the term is specific to the presence of amphids in nematodes.


As amphidial is a term specific to the presence of amphids, there are no antonyms for this term.

The same root words

The root word “amphi” is also found in other words such as amphibian, which refers to a class of cold-blooded vertebrates that live both in water and on land, and amphitheater, which is a circular or oval-shaped venue for entertainment or sports events.

Example Sentences

  1. The amphidial sensory organs on the nematode’s head are essential for its survival.
  2. The researchers studied the chemical signals detected by the amphids to develop a new method of pest control.
  3. The amphitheater was filled with excited fans cheering on their favorite team.

In conclusion, amphidial is a term that is specific to the presence of amphids in nematodes. These sensory organs are essential for the survival and reproduction of these organisms and have potential applications in pest control. Understanding the meaning and associations of amphidial can provide insight into the biology of nematodes and their role in the ecosystem.

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