12 letters · 14 points in Scrabble
noun abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium; most common in postmenopausal women
originFrom Ancient Greek ὀστέον (ostéon, “bone”) + Ancient Greek πώρωσις (pṓrōsis, “petrification, callousness”), from Ancient Greek πῶρος (pôros, “tuff, a porous type of rock”). By surface analysis, osteo- + pore + -osis.
Etymology from Wiktionary, CC BY-SA 3.0