acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction; "of the top 50 commodity chemicals, 30 are created directly by catalysis and another 6 are made from raw materials that are catalytically produced"
distribute according to a plan or set apart for a special purpose; "I am allocating a loaf of bread to everyone on a daily basis"; "I'm allocating the rations for the camping trip"
(astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun); "the full phase of the moon"
(physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary; "the reaction occurs in the liquid phase of the system"
a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"
adjust so as to be in a synchronized condition; "he phased the intake with the output of the machine"
pressing importance requiring speedy action; "the urgency of his need"
an urgent situation calling for prompt action; "I'll be there, barring any urgencies"; "they departed hurriedly because of some great urgency in their affairs"
the state of being urgent; an earnest and insistent necessity