saltus

[sal-tuh s, sawl-] /ˈsæl təs, ˈsɔl-/
noun, plural saltuses. Mathematics
1.
oscillation (def 5b).
Origin
1655-65; < Neo-Latin, Latin: a leap. See salt2
British Dictionary definitions for saltus

saltus

/ˈsæltəs/
noun (pl) -tuses
1.
a break in the continuity of a sequence, esp the omission of a necessary step in a logical argument
Word Origin
Latin: a leap