calorific

adj [usu attrib 通常作定语] of or producing heat 生热的; 发热的: calorific value, ie the quantity of heat or energy produced by a given amount of fuel or food 发热值（燃料或食物产生的热量）.

calligraphy, calling, calling-card, calliper (also caliper), callisthenics (also calisthenics), callosity, callous, calloused, callously, callousness, callow, callowness, callus, calm, calm down, calmly, calmness, Calor gas, calorie, calories, calorimeter, calory, calumniate, calumnious, calumny, calve, calves, Calvinism, Calvinist, calypso, calyx, cam, camaraderie, camber, cambric, Cambridge, camcorder, came, camel, camel-hair (also camel's-hair),