SEXTODECIMO

[ ˌsɛkstə(ʊ)'dɛsɪməʊ ]

(abbrev.: 16mo )

■ noun ( plural ~s ) a size of book page that results from folding each printed sheet into sixteen leaves (thirty-two pages).

Origin

C17: from L. sexto decimo , ablative of sextus decimus 'sixteenth'.