The phrase "of various ethnicities" is correct and usable in written English.
It can be used when referring to a diverse group of people from different ethnic backgrounds.
Example: "The festival celebrated the rich culture and traditions of various ethnicities in the community."
Alternatives: "from different ethnic backgrounds" or "of diverse backgrounds."
BM: My cast is made up of various ethnicities.
The WLB is an umbrella organisation comprising 13 women's organisations of various ethnicities.
Her new floor cloths depict children of various ethnicities; in one version, above, two girls play hopscotch.
The headline: "New York is eating it up!" Other posters showed New Yorkers of various ethnicities eating sandwiches.
In these troubled times, the directorship of Soas, a university with students and lecturers of various ethnicities from across the world, could be the hottest of hot potatoes.
Whither Danny and Melinda? 10 P.M. (13) INDEPENDENT LENS: RACE IS THE PLACE -- Writers and performers of various ethnicities comment, directly and through their work, on racial attitudes.
Of those, since racial segregation is only possible in areas with people of various ethnicity, only 29 sufficiently diverse metropolitan areas were considered.
For a culturally mixed country such as Malaysia, where people of various ethnicity practice different lifestyles under many different environments, the knowledge of population genetic substructure is important for proper design of case control association studies and for identifying disease predisposing alleles that may differ across ethnic groups [38].
Participants were presented with the stimuli, one face at a time, in random order on a CRT monitor (colour calibrated using a ColorVision Spyder 2Pro to mean ΔE of 2.32 for a range of skin tones reflecting faces of various ethnicity).
This association could well differ across populations of various ethnicity, for instance due to differences in fat distribution [ 13].
Davenport et al. [ 35] reported on a prevalence of pockets (i.e. CPITN 4) of 44% in a group of UK women of various ethnicity assessed immediately after delivery.
