Precedence may refer to: *

Message precedence Message precedence is an indicator attached to a message indicating its level of urgency, and used in the exchange of radiograms in radiotelegraph and radiotelephony procedures. Email header fields can also provide a precedence flag. Early teleg ...

of military communications traffic *

Order of precedence An order of precedence is a sequential hierarchy of nominal importance and can be applied to individuals, groups, or organizations. Most often it is used in the context of people by many organizations and governments, for very formal and state o ...

, the ceremonial hierarchy within a nation or state *

Order of operations In mathematics and computer programming, the order of operations (or operator precedence) is a collection of rules that reflect conventions about which procedures to perform first in order to evaluate a given mathematical expression. For exampl ...

, in mathematics and computer programming * Precedence Entertainment, a defunct American game publisher * Precedence (solitaire), a solitaire card game which uses two decks of playing cards * Precedence, a brand of

SPECT Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera (that is, ...

/CT scanner manufactured by Philips

See also