hyo·deoxycholic acid noun orhyo·desoxycholic acid\|hī(ˌ)ō+...-\ Etymology: International Scientific Vocabulary hyo- (II) + deoxy- or desoxy- + cholic : a crystalline bile acid C22H37(OH)2COOH found in the bile of the pig and wild boar; 3,6-dihydroxy-cholanic acid