A condition in computing where a calculation or data operation results in a number smaller than the smallest value that can be stored in a given data type.

The program crashed due to an underflow error when it attempted to divide by a very small number.

The flow of liquid or gas beneath a barrier or through a channel, often used in engineering contexts.

The engineers designed the dam to prevent underflow that could erode the foundation.

underflowverb

To experience a condition in which a calculation or data operation results in a number smaller than the smallest value that can be stored in a given data type.

The program began to underflow when it attempted to process the extremely small numbers.

Of a fluid, to flow beneath a barrier or through a channel.

Groundwater may underflow the levee and weaken its base.

underflowadjective

Relating to or caused by an underflow, especially in computing.

The system halted because of an underflow condition.