n. A layer of short hairs underneath the longer ones of an animal's fur
n. A coat of paint or other material applied onto a surface before that of a topcoat; a coloured primer
v. To apply an undercoat.
the GNU version of the Collaborative International Dictionary of English
n. A coat worn under another; a light coat, as distinguished from an overcoat, or a greatcoat.
n. A growth of short hair or fur partially concealed by a longer growth.
The Century Dictionary and Cyclopedia
n. A coat for house-wear, or for use in mild weather, as distinguished from an overcoat.
n. In long-haired animals, the under layer of hair.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion
v. cover with a primer; apply a primer to
n. the first or preliminary coat of paint or size applied to a surface
n. thick soft fur lying beneath the longer and coarser guard hair
Word Usage
"He's cute, small (20lbs), and currently moulting (ie, his undercoat is shedding in ginormous clumps), in case you're new to the blog and haven't seen pictures."