actinian
- noun
- /ækˈtɪniən/
- Specialized
:
actiniana
- A variety of fish seek shelter among the stinging tentacles of the actinian.
Examples
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Researchers studied the diet of the actinian inhabiting coral reefs.
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The actinian waved its colorful tentacles as the tide rolled in.
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The actinian swayed gently with the ocean current.
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Many actinians can be found in coral reefs.
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A variety of fish seek shelter among the stinging tentacles of the actinian.
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Researchers studied the diet of the actinian inhabiting coral reefs.
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The actinian waved its colorful tentacles as the tide rolled in.
Synonyms
10
8.0
A sea animal with a ring of tentacles that looks like a flower and sticks to rocks or reefs
3
6.0
A soft sea animal that looks like a flower with a ring of tentacles around its mouth
A sea animal like a flower with stinging tentacles that catches small animals
A sea animal like a sea anemone with tentacles that lives on rocks or reefs
A marine animal that lives attached to the sea floor like a coral or sea anemone
A group of sea animals like corals and sea anemones that stay attached and do not have a jellyfish stage
Surface Forms
Morphology
actinian = Actinia (opaque) = actini + an
Although formed by the regular suffix '-an', the base is a rare taxonomic name unfamiliar to average learners, so knowing common morphemes won't let a B1 learner deduce the meaning.
Etymology
The word actinian comes from the Greek root aktis meaning 'ray'. Sea anemones have many tentacles that spread out like rays, so calling them actinians helps you picture their ray-like shape and remember these soft, tentacled sea animals.