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	Powered by Dorland's Medical Dictionary for Healthcare Consumers
	This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.
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	A |  B |  C |  D |  E |  F |  G |  H |  I |  J |  K |  L |  M |  N |  O |  P |  Q |  R |  S |  T |  U |  V |  W |  X |  Y |  Z   borderline (borīdәr-līn)   of a phenomenon, straddling the dividing line between two categories.   a term used in psychiatry for personality disorders that were formerly viewed as being on the border between psychosis and neurosis. See borderline personality disorder. Copyright 2007. An Elsevier publication. All rights reserved. Click here for important legal information about Dorland's Medical Dictionary.

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