(printing, historical) A fine, thin, short metal rule of the same height as the type, used in printing short lines in tabular matter.

Cordia alliodora, a flowering tree in the borage family, native to the American tropics.

A weapon consisting of a bomb placed at the end of a long pole, or spar, and attached to a boat. The weapon is used by running the end of the spar into the enemy ship.

(nautical) A yarn twisted against its lay.

(nautical) A purchase composed of two single blocks, or (double Spanish burton) one double and two single blocks.

(algebraic geometry) A locally ringed space of a subring k of a field K, whose points are valuation rings containing k and contained in K. They generalize the Riemann surface of a complex curve.

Zariski-Riemann space

(archaic) licorice

(nautical) A knot tied in the head of a jib-headed sail.

Passerella iliaca, a large American sparrow, sometimes split into four species in Passerella.