from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. The fictional character who is no bigger than his father's thumb and is the protagonist and hero of the fairy tale The History of Tom Thumb.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a very small person
- n. an imaginary hero of English folklore who was no taller than his father's thumb
Tom + thumb (Wiktionary)