polyplacophore
Definition
Noun: 1. A type of marine mollusk: A primitive, elongated, bilaterally symmetrical marine mollusk characterized by having a mantle covered with eight overlapping calcareous plates or shell valves. This animal is commonly known as a chiton.
Usage Examples
- Noun:
- The polyplacophore clung tightly to the rocky surface in the tidal zone.
- Underneath its eight protective plates, the polyplacophore has a broad, muscular foot for locomotion.
- Scientists study the polyplacophore to understand the evolution of mollusks.
Advanced Usage
- As a subject in biological taxonomy: The term is used in scientific and zoological contexts to refer specifically to members of the class Polyplacophora.
- The fossil record suggests that the polyplacophore body plan has existed for hundreds of millions of years.
Variants and Related Words
- Chiton (n): The common name for a polyplacophore.
- We found several chitons during the low-tide exploration.
- Polyplacophora (n, plural): The scientific class name encompassing all chitons.
- The class Polyplacophora is entirely marine.
Synonyms
- Chiton: The most direct and common synonym.
- Sea cradle: A less common, descriptive name.
Related Terms (Scientific Context)
- Mollusk (n): The larger phylum (Mollusca) to which polyplacophores belong.
- Radula (n): The rasping, tongue-like feeding organ possessed by polyplacophores and other mollusks.
- Mantle (n): The dorsal body wall which in polyplacophores secretes the eight shell plates.
Noun
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primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates
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