(n)(psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation, Syn.perceptual constancy
n. [ L. constantia: cf. F. constance. See Constant. ] 1. The state or quality of being constant or steadfast; freedom from change; stability; fixedness; immutability; as, the constancy of God in his nature and attributes. [ 1913 Webster ]
2. Fixedness or firmness of mind; persevering resolution; especially, firmness of mind under sufferings, steadiness in attachments, or perseverance in enterprise; stability; fidelity. [ 1913 Webster ]
A fellow of plain uncoined constancy. Shak. [ 1913 Webster ]
[じゅうねんいちじつ;じゅうねんいちにち, juunen'ichijitsu ; juunen'ichinichi](n) without intermission for ten (long) years; with constancy of purpose for ten (long) years; in the same old rut for years on end[Add to Longdo]