Pen-tăg'o-nal, a.
a. [Fr. pentagonal, pentagone, It. pentagonale, Lat. pentagonus, pentagonius, Gr. πεντάγωνος.] Having five corners or angles.
a. [Fr. pentagonal, pentagone, It. pentagonale, Lat. pentagonus, pentagonius, Gr. πεντάγωνος.] Having five corners or angles.