cholic / colic [ˈkɒlɪk]
cholic – n. – cholic acid, a crystalline bile acid, C23H36(OH)3COOH, obtained by hydrolysis of taurocholic or glycholic acid; 3,7,12-trihydroxycholanic acid
colic – n. – a condition characterized by acute spasmodic abdominal pain, esp. that caused by inflammation, distention, etc., of the gastrointestinal tract