Source : Webster's Revised Unabridged Dictionary (1913)

Juncture \Junc"ture\, n. [L. junctura, fr. jungere to join. See
   {Jointure}.]
   1. A joining; a union; an alliance. [Obs.] ``Devotional
      compliance and juncture of hearts.'' --Eikon Basilike.

   2. The line or point at which two bodies are joined; a joint;
      an articulation; a seam; as, the junctures of a vessel or
      of the bones. --Boyle.

   3. A point of time; esp., one made critical or important by a
      concurrence of circumstances; hence, a crisis; an
      exigency. ``Extraordinary junctures.'' --Addison.

            In such a juncture, what can the most plausible and
            refined philosophy offer?             -- Berkeley.

Source : WordNet®

juncture
     n 1: an event that occurs at a critical time; "at such junctures
          he always had an impulse to leave"; "it was needed only
          on special occasions" [syn: {occasion}]
     2: a crisis situation or point in time when a critical decision
        must be made; "at that juncture he had no idea what to
        do"; "he must be made to realize that the company stands
        at a critical point" [syn: {critical point}, {crossroads}]
     3: the shape or manner in which things come together and a
        connection is made [syn: {articulation}, {join}, {joint},
        {junction}]