Definition

Noun: A sertularian is a type of colonial marine animal, specifically a hydroid, that forms a delicate, plant-like structure. The colony consists of long, branching stems that bear numerous small, paired polyps (individual animals) which lack stalks. The overall appearance is often feathery or fern-like.

Usage

The word sertularian is a specific zoological term. It is used to classify and describe a particular group of hydrozoans within the family Sertulariidae. - The marine biologist carefully documented the sertularian attached to the submerged rock. - Under the microscope, the intricate structure of the sertularian colony was clearly visible.

Advanced Usage

• The term is primarily used in scientific contexts such as marine biology, zoology, and ecology.
• It can be used attributively as a noun modifier (e.g., , ).

Variants and Related Words

• Sertulariid (noun/adjective): An alternative term for a member of the family Sertulariidae; pertaining to this family.
• Hydroid (noun): The broader class of colonial cnidarians to which sertularians belong.
• Polyp (noun): The individual, sessile feeding zooid that makes up the colony.

Synonyms

• Hydrozoan colony (a broader, less specific synonym)
• Feather hydroid (a descriptive common name)

Related Phrases and Terms

• Colonial organism: An organism composed of multiple connected individuals (zooids), which is the life form of a sertularian.
• Sessile polyps: Refers to the attached, non-motile nature of the individual animals in the colony.

Noun

1. feathery colony of long-branched stems bearing stalkless paired polyps