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hammerhead

[ham-er-hed] /ˈhæm ərˌhɛd/
noun
1.
the part of a hammer designed for striking.
2.
a shark of the genus Sphyrna, especially S. zygaena, having the head expanded laterally so as to resemble a double-headed hammer, sometimes dangerous to swimmers.
3.
Also called hammerkop
[ham-er-kop] /ˈhæm ərˌkɒp/ (Show IPA)
. a brown heronlike African bird, Scopus umbretta, having the head so crested as to resemble a claw hammer.
5.
Slang. blockhead; dunce; lout.
Origin
1525-1535
1525-35; hammer + head
Related forms
hammerheaded, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hammer headed

hammerhead

/ˈhæməˌhɛd/
noun
1.
any shark of the genus Sphyrna and family Sphyrnidae, having a flattened hammer-shaped head
2.
a heavily built tropical African wading bird, Scopus umbretta, related to the herons, having a dark plumage and a long backward-pointing crest: family Scopidae, order Ciconiiformes
3.
a large African fruit bat, Hypsignathus monstrosus, with a large square head and hammer-shaped muzzle
Derived Forms
hammerheaded, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hammer headed

hammerhead

n.

type of shark, 1843, from hammer (n.) + head (n.). So called for its broad, transverse head.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for hammer headed

hammerhead

noun

A stupid person: The best way out is for one of the three to be a hammerhead (1930s+)


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Encyclopedia Article for hammer headed

hammerhead

(Scopus umbretta), African wading bird, the sole species of the family Scopidae, within the order Ciconiiformes, which also includes herons, flamingos, and storks. The hammerhead ranges over Africa south of the Sahara and occurs on Madagascar and in southwestern Arabia. It is about 60 cm (2 feet) long, nearly uniform umber or earthy brown in colour, and bears a conspicuous horizontal crest on the back of its large head. The heavy, compressed, hook-tipped bill and short legs are black. Active especially at twilight, the bird sits beside a stream with its head down or wades slowly, stirring the mud with one foot and then the other, feeding on mollusks, frogs, small fishes, and aquatic insects. It builds an enormous nest of sticks, sometimes 1.8 m (6 feet) across and 1.2 m (4 feet) high, on a rocky ledge or in a tree. The nest is dome shaped with an entrance on the side and a narrow tunnel leading to a central chamber lined with mud. The bird lays three to six chalky-white eggs

Learn more about hammerhead with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Word Value for hammer

13
14
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