The clinic was funded under a law that principally applies to migrant workers.
Ebola is, even now, a rare (though lethal) disease that principally affects the poorest countries on earth.
Others point to "pork" or "earmarks" in the budget public works projects inserted into spending bills that principally benefit an individual congressman's district or a senator's state.
Mitt Romney has proposed huge tax cuts that principally benefit the wealthy, while refusing to say how he would pay for them by closing unspecified loopholes.
More-radical commentators have seen the globalization of democracy as the circulation of elites, or low-intensity democracy that principally legitimates a free-market international order.
Exhaust gases from internal combustion engines contain large amounts of hydrocarbons (substances that principally contain carbon and hydrogen molecules gasoline, for example).
It was a relatively stress-free, anonymous life that principally entailed attending races, spending his father's millions at horse auctions and studying bloodlines to find suitable stallions to mate with the Steinbrenner mares.
He was also concerned with the psychology of his principal characters, and your screenwriter, director and production staff have to do something about that: principally, one hopes, by not making a nonsense of the casting.
Of the top fifty largest individual gifts to public charities last year, the writer Ken Stern noted, "not a single one of them went to a social service organization or to a charity that principally serves the poor and dispossessed".
Now the way you address that principally is in the area of supply," he said Morrison said people aged between 25 and 44 were a particular problem, because their rate of housing ownership had fallen.
ML: At the point where I got a sense of what the film should be, and I was able to share that, principally with Dick Pope - the cinematographer, who's a genius and who's shot all my films since Life is Sweet in 1990 - and also the production designer, costume designer and makeup designer, I talked about Poppy.
