from The American Heritage® Dictionary of the English Language, 4th Edition
- n. In Christianity, a sign made by tracing the outline of a cross with the right hand as a devotional act or to invoke a blessing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A gesture of the hand moving over the front of one's body in the shape of a cross made as part of ritual or to invoke divine protection.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a gesture with the right hand moving to form a cross; used by Catholics as a profession of faith
A calque translation of Latin signum crucis (Wiktionary)