a ram's horn used in ancient times as a signaling trumpet, and still blown in synagogues on Rosh Hashana and at the end of Yom Kippur
See shofar in American Heritage Dictionary 4
(shōˈfärˌ, -fər)
nounpl.sho·fars or sho·froth(shō-frōtˈ, -frōsˈ) Judaism
A trumpet made of a ram's horn, blown by the ancient Hebrews during religious ceremonies and as a signal in battle, now sounded in the synagogue during Rosh Hashanah and at the end of Yom Kippur.
