Digestive, adj. & n.
--adj.
1 of or relating to digestion.
2 aiding or promoting digestion.
--n.
1 a substance that aids digestion.
2 (in full digestive biscuit) Brit. a usu. round semi-sweet wholemeal biscuit.
digestively adv.
ME f. OF digestif -ive or L digestivus (as DIGEST)