sea pen


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sea pen

n.
Any of various corals of the order Pennatulacea, having a flexible skeleton in the form of a long central shaft with numerous branches on each side.

[From its resemblance to a quill pen.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sea pen

n
(Animals) any of various anthozoan coelenterates of the genus Pennatula and related genera, forming fleshy feather-like colonies in warm seas: order Pennatulacea
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sea′ pen`


n.
any soft coral of the order Pennataluceae, forming feather-shaped colonies.
[1755–65]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sea pen - fleshy featherlike warm-water coloniessea pen - fleshy featherlike warm-water colonies
actinozoan, anthozoan - sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
genus Pennatula, Pennatula - type genus of the family Pennatulidae: sea pens
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This is due to a possible restriction on using mobile bottom gear equipment on the seafloor to trawl or dredge across burrowed mud, a habitat which hosts Norway lobster and species such as the fireworks anemone and the tall sea pen.
And though visitors won't be able to get as close to the dolphins as they can in the Aquarium, they'll be able to observe the captivating creatures from a seaside boardwalk as Jade, Spirit, Chesapeake and the others swim in the currents and occasionally do one of the spectacular backwards flips known as "breaching." The new sea pen will be between 50 and 100 times larger than the dolphins' current home, said John Racanelli, the Aquarium's president and CEO -- potentially up to 800 feet long by 500 feet wide, and it will be separated from open water by a double fence.
These differences included (1) two species, sand star and black crinoid, whose densities differed between energized and unenergized cables, (2) three species, thin sea pen, red octopus, and white sea urchin, which differed between cable sides, (3) seven species, white-plumed anemone, spot prawn, thin sea pen, California sea cucumber, red octopus, Urticina spp., and black crinoid, which exhibited bottom depth differences, and (4) two species, thin sea pen and sand star, whose densities varied among years.
He was part of every facet of Keiko's odyssey from a small tank in Mexico, to a rehabilitation center in Oregon, to an open sea pen in Iceland, and ultimately, to the open Atlantic Ocean in Norway.
The collagen of octocorals has not been widely investigated; studies have examined the sea pen (Franc et al., 1985; Tillet et al., 1996) and the gorgonian (Kingsley et al., 1990).
A Marine Scotland photograph of a phosphorescent sea pen, as part of their marine studies
The seven rescued whales, including one calf, had been transported to a floating protective sea pen where they were being cared for by vets and rehydrated.
Densities of the orange sea pen were also lower at HT sites, but the difference was not statistically significant.
The orca who starred in the 1993 movie was moved in September 1998 from a US west coast aquarium to a sea pen off Iceland's south coast.
Keiko will be loaded on to a barge and taken to a sea pen, the size of a football field, in a protected cove.
But with the help of four divers, who removed the sling in which he was lowered, Keiko dived below the surface and began slowly swimming laps around the huge sea pen where he is to adjust to the wild.
Both sites have perennially dense beds of the sea pen Ptilosarcus gurneyi and, usually, high populations of T.