Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
pillow talk
pillowcase
pillowslip
pilm
pilocarpine
piloerection
pilose
pilot
pilot balloon
pilot bread
pilot fish
pilot lamp
pilot light
pilot officer
pilot whale
pilotage
pilothouse
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

pilot balloon
pi·lot bal·loon (plural pi·lot bal·loons)


noun 
Definition:
 
balloon used in wind studies: a small balloon launched to study the speed and direction of winds at high altitudes. The balloon is visually tracked by a theodolite.
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft