"Dicalcium" is a compound word made up of "di-" meaning two and "calcium" referring to a mineral. So, "dicalcium" essentially means "containing or related to two calcium atoms." Full definition
Reserveage Organics, producer of premium resveratrol health supplements announced it will begin utilizing rice bran and silica instead of dicalcium phosphate and magnesium stearate. (seacoast.com)
E: lb (115 g) liver (diced and braised, retain fat), cup creamed cottage cheese, 2 cups (350 g) cooked rice (no salt), 1 T (15 g vegetable oil), 1 T (15 g) chicken fat, cup 2 % milk, Taurine 50 — 100 mg / d, 1 tsp pectin, — 1 tsp bone meal or equivalent dicalcium phosphate and calcium carbonate. (academic.oup.com)