What does metamere mean?
A metamere refers to one of the repeating parts of a body that is divided into a series of similar segments. This term is particularly used in biology to describe the body structure of certain invertebrate animals, such as earthworms, leeches, and insects. The concept of metameres is crucial in understanding the anatomy and classification of these organisms. The body of such animals is composed of many metameres, each with a similar structure and function. This segmentation allows for greater flexibility and mobility. The term is often used interchangeably with 'segment' or 'somite', although 'metamere' specifically refers to the repeating parts of a body.
nounA metamere is a part of a body that is one of a series of similar segments into which the body of an animal, especially a worm or insect, is divided.
- A part of a segmented body
- A unit of a metameric series
"The earthworm's body is composed of many metameres, each with a similar structure."
"The leeches have a large number of metameres."
"Each metamere of the annelid has a similar set of muscles."
The plural form 'metameres' is used to refer to multiple segments of a body.
"The leeches have a large number of metameres."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of metamere
The term 'metamere' originates from the Greek words 'meta', meaning 'beyond' or 'transcending', and 'meros', meaning 'part'. It has been used in biology since the 19th century to describe the segmented body structure of certain animals.
How metamere is actually used
This term is primarily used in biology and zoology to describe the body structure of certain invertebrate animals.