n. The power of retaining; retentive force; as, the retentivity of a magnet. [ 1913 Webster ]
n. [ Cf. F. réceptivité. ] 1. The state or quality of being receptive. [ 1913 Webster ]
2. (Kantian Philos.) The power or capacity of receiving impressions, as those of the external senses. [ 1913 Webster ]