dibranch
Học thuậtThân thiện
Definition
- Noun:
- A cephalopod having two gills: A "dibranch" is a type of cephalopod mollusk characterized by having two gills. This group includes animals like squids, cuttlefish, and octopuses.
Usage Examples
- Noun:
- The squid is a common example of a dibranch.
- Scientists study the nervous system of the dibranch to understand complex behaviors.
Advanced Usage
- In scientific classification: The term "dibranch" is often used in zoological and marine biology contexts to classify and describe certain cephalopods based on their gill structure.
- The subclass Dibranchia includes all modern cephalopods except the nautilus.
Variants and Related Words
- Dibranchiate (adj): Having two gills. This is the adjectival form.
- The dibranchiate cephalopods are highly evolved.
Synonyms
- Two-gilled cephalopod: A descriptive synonym.
- Coleoid: A more modern taxonomic term that generally refers to the same group (squids, octopuses, cuttlefish).
Notes on Meaning
- The word "dibranch" is highly specialized and primarily used in scientific literature. It is not common in everyday English. Its meaning is very specific, referring solely to the anatomical feature (two gills) of these mollusks.