f 4 i 1 s 1 s 1 i 1 o 1 n 1
7 letters · 10 points in Scrabble
Meaning
noun reproduction of some unicellular organisms by division of the cell into two more or less equal parts
noun a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
originBorrowed from Latin fissiōnem, accusative singular of fissiō (“the act of breaking up”), from findō (“split, divide”).
Etymology from Wiktionary, CC BY-SA 3.0