Top Definition
The act or condition of vanishing abruptly, mysteriously, or completely. Named for Lt. Kara Thrace's enigmatic disappearance in the series finale of the re-imaged sci-fi television program Battlestar Galactica.
The topical ointment the gynecologist prescribed worked wonders; when he woke up this morning, the hideous rash was gone without a thrace.
by Nocturna of the Fey March 21, 2009
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