Definition of sea pen Sea pen
We found 2 definitions of sea pen from 2 different sources.
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What does sea pen mean?
WordNet
Noun |
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| sea pen - fleshy featherlike warm-water colonies | ||
| actinozoan, anthozoan sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed | ||
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Wiktionary 
- sea pen (Noun)
A colonial marine cnidarian of the order Pennatulacea.
