American Heritage Dictionary
Century Dictionary
(3)
GNU Webster's 1913
(2)
WordNet
Elsewhere on the web
He could not have much charity for the most generous opponents; he certainly had none at all for those who (as he said) printed malicious and lying pamphlets against him "almost every morning," in which he found himself saluted as a "nest of perfidious vipers," "a night-flying dragon prince," "a flapdragon," "a caterpillar," "a spider," and "a— The Atlantic Monthly, Volume 03, No. 20, June, 1859

Century Dictionary (2)
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