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Directionality

[dih-rek-shuh-nl, dahy-]

adjective

of, pertaining to, or indicating direction in space.

Radio. adapted for determining the direction of signals received, or for transmitting signals in a given direction: a directional antenna.

of, pertaining to, or providing guidance or leadership.

Origin:
1605–15; direction + -al¹

Related forms

di·rec·tion·al·i·ty, noun

di·rec·tion·al·ly, adverb

un·di·rec·tion·al, adjective

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

So is interrobang. Does it mean:

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.

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Collins

World English Dictionary

directional (dɪˈrɛkʃən^əl, daɪ-)

—*adj*
1.	of or relating to a spatial direction
2.	electronics
	a. having or relating to an increased sensitivity to radio waves, sound waves, nuclear particles, etc, coming from a particular direction
	b. (of an aerial) transmitting or receiving radio waves more effectively in some directions than in others
3.	physics, electronics
	a. concentrated in, following, or producing motion in a particular direction
	b. indicating direction
4.	indicating the direction something, such as a fashion trend, might take: directional fashion looks

direction'ality

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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