1. (noun) biscuit star, Pentagonaster pulchellus - a starfish shaped and coloured like a fancy biscuit. The pairs of rounded knobs at each extremity have a slightly browned appearance. Attains a diameter of about 75 mm. Fairly common cast ashore on South Island and southern North Island sandy beaches.

1. (loan) (noun) biscuit, cookie.

1. (noun) cake urchin, snapper biscuit, Fellaster zelandiae - common in sand near the entrance to harbours from low water to a few meters in depth. A hard limy disc up to 100 mm in diameter, flat on the lower side and slightly convex above covered in short mossy-green spines.