principal focus

noun Optics.

focal point (def. 1).

Origin:
1825–35

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Principal focus is always a great word to know.

So is flibbertigibbet. Does it mean:

a chattering or flighty, light-headed person.

a gadget; dingus; thingumbob.

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Collins

World English Dictionary

principal focus

—n
	another name for focal point

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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