Sex`to*dec"i*mo (?), a. [L. sextus- decimus the sixteenth; sextus the sixth (fr. sex six) + decimus the tenth, from decem ten. See - mo.] Having sixteen leaves to a sheet; of, or equal to, the size of one fold of a sheet of printing paper when folded so as to make sixteen leaves, or thirty-two pages; as, a sextodecimo volume.

Sex`to*dec"imo, n.; pl. Sextodecimos (&?;). A book composed of sheets each of which is folded into sixteen leaves; hence, indicating, more or less definitely, a size of a book; -- usually written 16mo, or 16°.

Sex`to*dec"i*mo (?), a. [L. sextus- decimus the sixteenth; sextus the sixth (fr. sex six) + decimus the tenth, from decem ten. See - mo.] Having sixteen leaves to a sheet; of, or equal to, the size of one fold of a sheet of printing paper when folded so as to make sixteen leaves, or thirty-two pages; as, a sextodecimo volume.

Sex`to*dec"imo, n.; pl. Sextodecimos (&?;). A book composed of sheets each of which is folded into sixteen leaves; hence, indicating, more or less definitely, a size of a book; -- usually written 16mo, or 16°.