Defn: A troy weight containing twenty-four grains, or the twentieth part of an ounce; as, a pennyweight of gold or of arsenic. It was anciently the weight of a silver penny, whence the name.

PENNYWORT
Pen"ny*wort`, n. (Bot.)

Defn: A European trailing herb (Linaria Cymbalaria) with roundish, reniform leaves. It is often cultivated in hanging baskets. March, or Water, pennywort. (Bot.) See under March.

PENNYWORTH
Pen"ny*worth`, n.

1. A penny's worth; as much as may be bought for a penny. "A dear pennyworth." Evelyn.

2. Hence: The full value of one's penny expended; due return for money laid out; a good bargain; a bargain. The priests sold the better pennyworths. Locke.

3. A small quantity; a trifle. Bacon.

PENOCK
Pen"ock, n.

Defn: See Pend.

PENOLOGICAL
Pen`o*log"ic*al, a.