Definition of sea pen in English:

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sea pen

noun

A marine coelenterate related to the corals, forming a feather-shaped colony with a horny or calcareous skeleton.
  • Order Pennatulacea, class Anthozoa
Example sentences
  • Among the strait's most impressive creatures is the beautiful sea pen, and these beautiful animals are often displayed in public aquariums.
  • Anthozoans include sea anemones, a variety of corals, sea fans, and sea pens.
  • There is no coral reef as such, but there are plenty of soft corals, sponges, gorgonia and some very colourful sea pens.
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