incubator An equipment providing a closed controllable environment in which optimum conditions may be established for the nutrition, growth and preservation of organisms, whether bacterial or human. Incubators are used to culture bacteria and to promote the survival of premature babies. inÂ·cuÂ·baÂ·tor (in'kyÅ«-bÄ-tÅr)
Definitions for plate tectonic theory. tectonics, plate tectonics, plate tectonic theory(noun) the branch of geology studying the folding and faulting of the earth's crust. Chaldean Numerology. The numerical value of plate tectonic theory in Chaldean Numerology is: 5.
A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continent and ocean crust. Scientific theory. A well tested concept that explains a wide range of observations. Plate tectonics. The theory that pieces of the earth's lithosphere are in constant motion driven by convection currents in the mantle. A break or crack in the earth's lithosphere along which the rocks move. A deep valley that forms where two plates move apart. A plate boundary where two plates MOVE TOWARD each other.