plural of air sign

plural of earth sign

plural of fire sign

plural of water sign

plural of minus sign

(medicine) One of the signs of tetany seen in hypocalcemia. When the facial nerve is tapped at the angle of the jaw (i.e. masseter muscle), the facial muscles on the same side of the face contract momentarily.

A relation symbol that indicates that two expressions are different; the ≠ symbol.

Alternative form of book signing.

plural of traffic sign

plural of stop sign