From The Collaborative International Dictionary of English v.0.48:
Juncture \Junc"ture\ (j[u^][ng]k"t[-u]r; 135), 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.
[1913 Webster]
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.
[1913 Webster]
3. A point of time; esp., one made critical or important by a
concurrence of circumstances; hence, a crisis; an
exigency. "Extraordinary junctures." --Addison.
[1913 Webster]
In such a juncture, what can the most plausible and
refined philosophy offer? --Berkeley.
[1913 Webster]