be riding the crest of a wave

crest | American Dictionary

crest
noun[ C ]
us/krest/
the top or highest part of something such as a wave or a hill:
We climbed to the crest of the hill.
crest
verb[ I ]
us/krest/
(of a wave, a flood, etc.) to reach the highest level that something can reach:
The flood waters crested Thursday (= reached their highest level).

Crest | Business English

Crest
trademark
uk /krest/us(alsoCREST)
FINANCE, STOCK MARKET
the electronic system through which the London Stock Exchange manages the buying and selling of stocks and shares

Examples of crest

crest
In the trunk region, several signaling pathways and transcription factors have been implicated in cell fate decisions of neural crest.
It would be more realistic to consider an incident wave whose crests make some arbitrary angle with the row of absorbers.
Downstream of the crest of each wave is a region of separated flow.
Recent investigations showed that cells from the cardiac neural crest contribute to the formation of the arch arteries and the media of the arch.
The high density plasma fluid extends into the trough and the low density plasma extends into the crests.
Cuts were made along the crests of gyri and the depths of sulci.
The upper surface of the rubber was strained in compression at the wave troughs, and in extension at the crests.
This mesial accessory cusp (protostylid) is low and bulbous (not crested).
Inbreeding depression in diploid, tetraploid, and hexaploid crested wheatgrass.
This wave pattern is very precisely twodimensional with the crests of the waves running perpendicular to the flow direction.
The inferior margin was formed by the crest of the muscular ridge.
They may break on the crest of, and transfer momentum to the long waves.
In addition, assume the existence of a limiting form of these waves in which the fluid speed at the highest crest is zero.
The most prominent developmental difference between atrio-ventricular and outflow tract cushions is the population of the outflow tract by neural crest cells.
Posteriorly, two crest-like bodies appear in the anterior part of the spermatid and the nucleus completes its migration (figs 4, 5 and 20e).
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