"The fourth dimension is a spatial direction, precisely perpendicular to the other three."

'It all seemed so easy back there,' and she flicked her fingers in the general spatial direction of Petaybee.

In general, the nanotechnology deals with structures ranging in size from 1-100 nanometers in at least one spatial direction.

I was needed there,' and he jabbed a finger in the spatial direction of Rrala, "not there!"

"Right there, I had a spatial direction," she said.

The new "spacetime" has only spatial directions, and is termed Euclidean.

The spatial direction of the torpedo noted and the report forwarded to those concerned with such matters.

The sampling rates and resolutions in both spatial directions can be measured in units of lines per picture height.

So for each particle we can represent its position and momentum in three spatial directions by 6 numbers.

Unexpected excesses in energy or excesses from a given spatial direction indicate an extraterrestrial source.