t has various meanings in the NASA category. Discover the full forms, definitions, and usage contexts of t in NASA.
The recommended direction or path to be followed when proceeding between predetermined position. Route, in sea or ocean, along which vessels customarily travel. That part of a line of advance that has already been travelled; particularly applied to storms.
NASAA hard shelll produced by some unicellular protists; may be made of calcium carbonate, silica, or sand grains.
NASALast updated: