WordNet (r) 3.0 (2006):

procedural
    adj 1: of or relating to procedure; "a procedural violation"
    2: relating to court practice and procedure as opposed to the
       principles of law; "adjective law" [syn: adjective,
       procedural] [ant: essential, substantive]

The Free On-line Dictionary of Computing (30 December 2018):

procedural language
procedural

    Any programming language in which the programmer
   specifies an explicit sequences of steps to follow to produce
   a result (an algorithm).

   The term should not be confused with "imperative language" -
   a language that specifies explicit manipulation of state.  An
   example (non-imperative) procedural language is LOGO, which
   specifies sequences of steps to perform but does not have an
   internal state.

   Other procedural languages include Basic, Pascal, C, and
   Modula-2.

   Both procedural and imperative languages are in contrast to
   declarative languages, in which the programmer specifies
   neither explicit steps nor explicit state manipulation.

   (2004-05-17)