principal focus


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prin·ci·pal fo·cus

the real or virtual meeting point of rays passing into a lens parallel to its axis.
References in periodicals archive ?
The principal focus is on Protestants in the United States, but individual chapters also touch upon English-Canadian Protestantism and the use of Protestant hymns in Roman Catholic hymnals.
In part, it may be that pre 9/11's principal focus was on stamping out illegal drugs, rather than bothering about the smuggling activities in West African countries or the petty crimes in the USA.
It's our principal focus at the moment," Grayme Anthony, president of Houston Lake, says.

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