Macerated; softened; nearly fluid.
If double boiler be used no water need be added, and thus the rice will be dry and not pultaceous.
No Animal Food and Nutrition and Diet with Vegetable Recipes
Mix some bread and meat with gastric juice; place them in a phial, and keep that phial in a sand-bath at the slow heat of 98 degrees, occasionally shaking briskly the contents to imitate the motion of the stomach; you will find, after six or eight hours, the whole contents blended into one pultaceous mass.
Grappling with the Monster The Curse and the Cure of Strong Drink
Mid 17th century; earliest use found in Philosophical Transactions of the Royal Society of London. From classical Latin pult-, puls pap, pottage + -aceous.