segmen, ĭnis, n. [seco],
what is cut off , a cutting , shred , little bit (very rare): unguium et capilli segmina, Fab. Pictor ap. Gell. 10, 15, 15: nulli secabile segmen, i. e. atom , Aus. Ecl. 1, 7: cannarum duplex fixa perpetuitas nec segmina, nec rimam ullam fieri patietur, i. e. will prevent the work from chipping off or cracking , Vitr. 7, 3.