(computing theory) A generalization of the shortest path problem to graphs that are only partially observable (i.e. the graph is revealed while it is being explored).

plural of Canadian porcupine

A North American porcupine (Erethizon dorsatum).

Having alternate stripes of white and color, like a candy cane.

Any of various low plants, mostly parasitic on roots, such as the beechdrops, the squawroot, etc.

A thick candle formerly used at a lich-wake, or the customary watching with a corpse on the night before its interment.

Synonym of Yablochkov candle

(electrical engineering) A type of electric carbon arc lamp.

Not worth the cost or trouble.

The resinous exudation of the hemlock tree (Abies canadensis, now Picea glauca); hemlock gum.