English Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 155 deride (v) To ridicule derisible (adj) Open to ridicule derision (n) Ridicule derivation (n) That process by which a word is traced from its original root or primitive form and meaning derivative (adj) Coming or acquired from some origin derive (v) To deduce, as from a premise dermatology (n) The branch of medical science which relates to the skin and its diseases derrick (n) An apparatus for hoisting and swinging great weights