horseshoe crab


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horseshoe crab

n.
Any of various marine arthropods of the order Xiphosurida, especially Limulus polyphemus of eastern North America, having a large rounded body and a stiff pointed tail. Also called king crab, limulus.
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.

horseshoe crab

n
(Animals) any marine chelicerate arthropod of the genus Limulus, of North America and Asia, having a rounded heavily armoured body with a long pointed tail: class Merostomata. Also called: king crab
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

horse′shoe crab′


n.
any of several large marine arthropods of the order Xiphosura, esp. Limulus polyphemus, of E North American shores, having a stiff tail and brown carapace curved like a horseshoe. Also called king crab.
[1765–75]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

horse·shoe crab

(hôrs′sho͞o′)
Any of various marine arthropods that have a large rounded shell that covers the body, two large compound eyes on the shell, and a stiff pointed tail. Horseshoe crabs are not in fact crabs, but belong to an ancient order of arthropods related to the spiders and extinct trilobites.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.horseshoe crab - large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tailhorseshoe crab - large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse
arthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
genus Limulus, Limulus - type genus of the family Limulidae
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The American horseshoe crab, Limulus polyphemus, is an ecologically and economically important species found in bays and estuaries along the Atlantic coast of North America, including the Great Bay Estuary (GBE), New Hampshire.
Their assay is manufactured using horseshoe crab blood.
If you to a heart valve or intravenous drug, you need a horseshoe crab, or, specifically, you need horseshoe crab blood.
A Florida woman got more than she bargained for after taking a horseshoe crab shell home from New Smyrna Beach, Florida this summer.
Destruction of spawning habitats with coastal developments led to the significant decline of Asian horseshoe crab populations in mainland China (Weng et al.
Scientists have named a 245,000 million-year-old horseshoe crab fossil after Darth Vader, because of its striking similarity to the film villain.
Catch and Release: The Enduring yet Vulnerable Horseshoe Crab
In the islet called Splash, we stop to feed the fish, look at the horseshoe crab, endangered species known for its medicinal values, and be entertained by a dive act.
The Atlantic horseshoe crab, Limulus polyphemus, is an important species for a variety of reasons.
There is a range of tests available for detecting endotoxins including the Rabbit Pyrogen Test (RPT) and tests based on Limulus Amebocyte Lysate (LAL), which is derived from the blood cells of the horseshoe crab. The sensitivity, reliability, and ease-of-use of the LAL test has made it the preferred method in most laboratories.
Escaping by using his tail to swim backwards, the blue lobster encounters a horseshoe crab, wondering, is this the claw tugger?
Selangor, Malaysia, June 22, 2015 - (ACN Newswire) - Human activity is affecting the population of Asian horseshoe crabs in the state of Sabah in Malaysia, possibly by disrupting the male to female ratio - that is the conclusion of a study that surveyed two populations of Mangrove horseshoe crab (Carcinoscorpius rotundicauda) and studied their mating behaviour.