signum

Etymology
..

Noun

 * 1) A sign, mark, or symbol.
 * 2)  A medieval tower bell used particularly for ringing the eight canonical hours.
 * 3)  A function that extracts the sign of a real number x, yielding -1 if x is negative, +1 if x is positive, or 0 if x is zero.
 * 1)  A function that extracts the sign of a real number x, yielding -1 if x is negative, +1 if x is positive, or 0 if x is zero.

Etymology
From, from or.

Noun

 * 1) visible indication: sign, mark, signal
 * 2) seal, signet
 * 3) emblem, ensign
 * 4) watchword
 * 5) symptom, prognostic
 * 6) miracle, miraculous work, sign
 * 7) statue, figure
 * 8)  constellation; sign in the heavens, heavenly sign
 * 9)   medieval tower bell used particularly for ringing the 8 canonical hours
 * 10)  the cross of Jesus Christ & Christianity.
 * 1)  constellation; sign in the heavens, heavenly sign
 * 2)   medieval tower bell used particularly for ringing the 8 canonical hours
 * 3)  the cross of Jesus Christ & Christianity.
 * 1)   medieval tower bell used particularly for ringing the 8 canonical hours
 * 2)  the cross of Jesus Christ & Christianity.