. "Catalysis of the hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)-glycosidic linkages of terminal sialic residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates." . . "exo-alpha-sialidase activity" . "acetylneuraminidase activity" . "acetylneuraminyl hydrolase activity" . "alpha-neuraminidase activity" . "N-acylneuraminate glycohydrolase activity" . "neuraminidase activity" . "sialidase activity" . . . . . .