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n. An onslaught; an assault.

n. A beginning; a start: the onset of a cold.

n. Linguistics The part of a syllable that precedes the nucleus. In the word nucleus (no͞oˈklē-əs), the onset of the first syllable is (n), the onset of the second syllable is (kl), and the last syllable has no onset.

n. A rushing or setting upon; an attack; an assault; a storming; especially, the assault of an army.

n. The initial phase of a disease or condition, in which symptoms first become apparent.

n. The initial portion of a syllable, preceding the syllable nucleus.

n. The beginning of a musical note or other sound, in which the amplitude rises from zero to an initial peak.

n. A setting about; a beginning.

n. Anything set on, or added, as an ornament or as a useful appendage.

v. To assault; to set upon.

v. To set about; to begin.

n. A rushing or setting upon; an attack; an assault; a storming; especially, the assault of an army.

n. A setting about; a beginning; -- used especially of diseases or pathological symptoms.

n. Anything set on, or added, as an ornament or as a useful appendage.

v. To assault; to set upon.

v. To set about; to begin.

n. A rushing or setting upon; attack; assault; especially, the assault of an army or body of troops upon an enemy or a fort, or the order for such an assault.

n. Start; beginning; initial step or stage; outset.

n. An attack of any kind: as, the impetuous onset of grief.

n. Something set on or added by way of ornament.

To assault; begin.

n. the beginning or early stages

n. (military) an offensive against an enemy (using weapons)

"This is facilitated by a standardized definition of possible yellow fever cases, such as “acute fever followed by jaundice within two weeks of onset of symptoms with bleeding symptoms or with death within three weeks of onset”."

start   

attack    assault    storming    beginning    begin    motion    movement   

onslaught    symptom    diagnosis    throes    incidence    verge    recurrence    outbreak    duration    occurrence