from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Hooked or bent like a sickle; as, a falcate leaf; a falcate claw; -- said also of the moon, or a planet, when horned or crescent-formed.
from The Century Dictionary and Cyclopedia
- Same as falcate: the form of the word commonly used of the disk of a planet when less than half of it is illuminated.
Latin falcatus ("sickle-shaped") (Wiktionary)