cusp in Russian
cusp in Russian
ко́нчик
A sharp point or pointed end.
остриё
A sharp point or pointed end.
пик
A sharp point or pointed end.
[[перело́мный]] [[моме́нт]]
(figuratively) An important moment when a decision is made that will determine future events.
[[то́чка]] [[разрыв|разры́ва]]
(geometry) A point of a curve where the curve is continuous but has no derivative, but such that it has a derivative at every nearby point.