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pteroylglutamic acid
pterygium
pterygoid process
pteryla
PTFE
ptg.
PTH
PTN
PTO
Ptolemaeus
Ptolemaic
Ptolemaic system
Ptolemaist
ptomaine
ptomaine poisoning
ptosis
pts.
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PTO
PTO


abbr 
Definition:
 
1. Parent-Teacher Organization
2. Patent and Trademark Office
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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