Definitions for actinaria
acti·nar·i·a

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Actiniaria, order Actiniaria, Actinaria, order Actinarianoun

   sea anemones

WikipediaRate this definition:0.0 / 0 votes

1. actinaria

   Sea anemones are a group of predatory marine invertebrates of the order Actiniaria. Because of their colourful appearance, they are named after the Anemone, a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and Hydra. Unlike jellyfish, sea anemones do not have a medusa stage in their life cycle. A typical sea anemone is a single polyp attached to a hard surface by its base, but some species live in soft sediment, and a few float near the surface of the water. The polyp has a columnar trunk topped by an oral disc with a ring of tentacles and a central mouth. The tentacles can be retracted inside the body cavity or expanded to catch passing prey. They are armed with cnidocytes (stinging cells). In many species, additional nourishment comes from a symbiotic relationship with single-celled dinoflagellates, with zooxanthellae, or with green algae, zoochlorellae, that live within the cells. Some species of sea anemone live in association with clownfish, hermit crabs, small fish, or other animals to their mutual benefit. Sea anemones breed by liberating sperm and eggs through the mouth into the sea. The resulting fertilized eggs develop into planula larvae which, after being planktonic for a while, settle on the seabed and develop directly into juvenile polyps. Sea anemones also breed asexually, by breaking in half or into smaller pieces which regenerate into polyps. Sea anemones are sometimes kept in reef aquariums; the global trade in marine ornamentals for this purpose is expanding and threatens sea anemone populations in some localities, as the trade depends on collection from the wild.

ChatGPTRate this definition:0.0 / 0 votes

1. actinaria

   Actinaria is a scientific term used in marine biology to refer to a specific order of sea anemones, a diverse group of water-dwelling, predatory animals. These creatures, found worldwide, are characterized by their polyp bodies with a single functional opening that acts as both mouth and anus, and their numerous tentacles. They are named for the radial symmetry of their body design, reminiscent of the radiating pattern of the spokes of a wheel.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Actinaria

   a large division of Anthozoa, including those which have simple tentacles and do not form stony corals. Sometimes, in a wider sense, applied to all the Anthozoa, expert the Alcyonaria, whether forming corals or not

2. Etymology: [NL., from Gr. , , ray.]

Matched Categories

1. • Animal Order

How to pronounce actinaria?

1. Alex

   US English

   David

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   Mark

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   Daniel

   British

   Libby

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   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

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   Veena

   Indian

   Priya

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   Neerja

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   Zira

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   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say actinaria in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of actinaria in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of actinaria in Pythagorean Numerology is: 4

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=actinaria
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Actinaria
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/actinaria