from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A small duct.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any very small duct
from The Century Dictionary and Cyclopedia
- n. A little duct.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a very small duct
From New Latin ductulus (Wiktionary)