It is also essential to have some way of measuring distance from this boundary region.

It is as if the vegetal cells have set up a new boundary region for specifying positional information.

The plumes would then originate at that boundary region.

It may also refer to the boundary region itself.

The rate of movement can be measured by following the change in refractive index n through the boundary region.

The boundary region will likely be extensive, but scientists concede they are not sure where it will begin.

However, these boundary regions are a fraction of one wavelength within the near-field.

The tropopause is a boundary region in Earth's atmosphere between the troposphere and the stratosphere.

But American troops are using their 155-millimeter guns to fire special illumination rounds to light up the wild boundary region.

The tropopause is the boundary region between the troposphere and the stratosphere.