Heraldry. a representation of a wild rose with five petals, usually seeded and barbed in a symmetrical design and used especially as the cadency mark of a seventh son.
9.
any of various diagrams showing directions radiating from a common center, as a compass card or wind rose.
10.
Jewelry.
a.
an obsolete gem style or cut, flat on the bottom and having an upper side with from 12, or fewer, to 32 triangular facets.
b.
a gem with this cut.
11.
a perforated cap or plate, as at the end of a pipe or the spout of a watering pot, to break a flow of water into a spray.
12.
an ornamental plate or socket surrounding the shaft of a doorknob at the face of a door.
13.
Mathematics. a plane polar curve consisting of three or more equal loops that meet at the origin. Equation: r = a sin(nθ) or r = a cos(nθ).