10 letters · 18 points in Scrabble
noun the branch of zoology that studies the structure and behavior of mollusks
originFrom French malacologie, contraction of malacozoologie, from the (obsolete) taxonomic name Malacozoa + French -ologie (“-ology”), Malacozoa being in turn from Ancient Greek μαλακός (malakós, “soft”) + ζῷον (zōîon, “animal”). Equivalent to malaco- + -logy.
Etymology from Wiktionary, CC BY-SA 3.0