Lewis & Short

ā̆plustre, is, n. (abl. aplustri, Prisc. p. 769 P.; nom. plur. aplustra, Lucr. 2, 555, and Cic. ap. Prisc. p. 769 P.; dat. heterocl. aplustris, Lucr. 4, 437), = ἄφλαστον, the curved stern of a ship, with its ornaments (ribbons, streamers, and little flags upon a pole): fluitantia quaerere aplustra, Cic. Arat. ap. Prisc. l. l. (Orell. IV. 2, p. 522): fulgent aplustria, Caes. Germ. Arat. ap. Prisc. l. l. (v. 345 Orell.); Luc. 3, 586; 3, 672: torquet aplustribus ignes, Sil. 14, 422; 10, 324 Drak.: bellorum exuviae, lorica et buccula victaeque triremis aplustre humanis majora bonis creduntur, Juv. 10, 136, ubi v. Rupert and Mayor.