10 letters · 13 points in Scrabble
noun a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
originEtymology tree Proto-Italic *knuks Latin nux Latin nucleuslbor. English nucleus English nucleo- Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idusder. English -ide English nucleotide From nucleo- (“relating to the nucleus”) + -ide (“chemical suffix”).
Etymology from Wiktionary, CC BY-SA 3.0