am·bi·po·lar

[am-bi-poh-ler]
adjective
1.
working in two directions simultaneously.
2.
Physics, Chemistry. pertaining to both positive and negative ions; applied to both positive and negative ions at the same rate.
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World English Dictionary
ambipolar (ˌæmbɪˈpəʊlə) [Click for IPA pronunciation guide]
 
adj
electronics (of plasmas and semiconductors) involving both positive and negative charge carriers

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Ambipolar is always a great word to know.
So is doohickey. Does it mean:
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.
a gadget; dingus; thingumbob.
Example sentences
Although there are free charges and ambipolar pairs in plasmas, overall the negative and positive charges compensate each other.
The performance of the ambipolar polymer circuits was comparable to or better than those made from two polymers.
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