Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
parastatal
parasuicide
parasympathetic
parasympathetic nervous system
parasynthesis
parasyntheton
parataxis
paratha
parathion
parathormone
parathyroid
parathyroid gland
parathyroid hormone
parathyroidectomy
paratransit
paratrooper
paratyphoid fever
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

parathion
par·a·thi·on [ pàrrə th òn ]


noun 
Definition:
 
insecticide: a colorless highly toxic oil. Use: insecticide. C10H14NO5PS
[Mid-20th century. <para-1 + thiophosphate + -on2]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft