home s Derek Vincent senescent se⋅nes⋅cent   [si-nes-uhnt] –noun 1. the organic process of growing older and showing the effects of increasing age   2. the property characteristic of old age a b c d e f g h i j k l m n o p q r s t u v w x y z self-portrait senescent shadow shade shallow shave shelf sheep shepherd shoe shopping cart shelter show-sleet