bug

In computing, an error in a program. It can be an error in the logical structure of a program or a syntax error, such as a spelling mistake. Some bugs cause a program to fail immediately; others remain dormant, causing problems only when a particular combination of events occurs. The process of finding and removing errors from a program is called debugging.

bug

In entomology, an insect belonging to the order Hemiptera. All these have two pairs of wings with forewings partly thickened.

They also have piercing mouthparts adapted for sucking the juices of plants or animals, the ‘beak’ being tucked under the body when not in use.

They include: the bedbug, which sucks human blood; the shieldbug, or stinkbug, which has a strong odour and feeds on plants; and the water boatman and other water bugs.

Bug

Name of two rivers in eastern Europe: the Western Bug rises in southwestern Ukraine and flows north to the Vistula, with a length of 768 km/480 mi; the Southern Bug rises in western Ukraine and flows southeast into the Dnieper estuary on the Black Sea, with a total length of 806 km/501 mi.

On its course, the Western Bug forms part of the borders between Poland and Ukraine, and Poland and Belarus. Its chief port is Brest, while the chief port on the Southern Bug is Mykolayiv.