[ kən-vĕn′shə-nəl ]
Any of various signs, such as words or symbols, that acquire their function through linguistic custom.
The 13th Zodiac Sign: OphiuchusWhether or not you believe that the sun, moon, stars, and planets have any bearing on your personality, you probably know what your astrological sign is. But have you heard of Ophiuchus? Some astrologers consider it to be the 13th astrological sign.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.