/siks"teenth"/ , adj.
1. next after the fifteenth; being the ordinal number for 16.
2. being one of 16 equal parts.
n.
3. a sixteenth part, esp. of one ( 1 / 16 ).
4. the sixteenth member of a series.
5. Music. See sixteenth note .
[ bef. 900; ME sixtenthe (see SIXTEEN, -TH 2 ); r. ME sixtenthe, sixtethe, OE sixteotha (see TITHE) ]