from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A figure of speech in which the speaker expresses or purports to be in doubt about a question.
- n. An insoluble contradiction or paradox in a text's meanings.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An expression of deliberation with oneself regarding uncertainty or doubt as to how to proceed.
from the GNU version of the Collaborative International Dictionary of English
- n. A figure in which the speaker professes to be at a loss what course to pursue, where to begin to end, what to say, etc.
from The Century Dictionary and Cyclopedia
- n. In rhetoric, a professed doubt where to begin or what to say on account of the variety of matter.
- n. An equality of reasons for and against a given proposition.
- n. In pathology, febrile anxiety; uneasiness.
- n. Also apory.
Greek, difficulty of passing, from aporos, impassable : a-, without; see a-1 + poros, passage; see per-2 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin aporia, from Ancient Greek ἀπορία, from ἄπορος (aporos, "impassable"), from ἀ- ("a-") + πόρος (poros, "passage"). (Wiktionary)