What is of or pertaining to the science of signs, or the systematic use of signs; as, a semeiological classification of the signs or symptoms of disease; a semeiological arrangement of signs used as signals called?

semeiological — Of or pertaining to the science of signs, or the systematic use of signs; as, a semeiological classification of the signs or symptoms of disease; a semeiological arrangement of signs used as signals. (Webster's 1913.)

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