Englishfor English speakers
onset
Noun
—
The onset of something is the time when it begins (usually something bad).
of
Preposition
—
Made using.
It is a house of cards.
oscillation
—
noun
the process of oscillating between states
—
noun
(physics) a regular periodic variation in value about a mean
—
noun
(= cycle)
a single complete execution of a periodically repeated phenomenon
a year constitutes a cycle of the seasons