Found 36,778 abbreviations starting with P:

P.M.H.N.P.

Psychiatric/Mental-Health Nurse Practitioner

Medical » Hospitals

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p.o.

per os - by mouth or orally

Medical » Prescription

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P.O.

by mouth (per os) [Lat.]

Medical » Prescription

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p.o.

by mouth

Medical » Prescription

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p.o. [Lat.: per os, per orem]

by mouth

Medical » Prescription

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P.O.BOX

Post Office Box

Community

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p.p.

past participle

Academic & Science » Libraries

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p.p.

by and for (per/pro [Lat.])

Community » Law & Legal

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p.p.c.

to take leave [Fr. pour prendre congé]

Community

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p.r.

per rectum - by rectum

Medical » Prescription

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p.r.

rectally (per rectum [ Lat.])

Medical

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P.S.

Patriotic Service

Academic & Science » Genealogy

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P.S.I.

Pressure Systems International

Business » Companies & Firms

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P.S.P.

President’s Surveillance Program (signed arguably into law by G.W. Bush on 2001-10-04)

Governmental » US Government

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P.T.

physio-therapy

Medical

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p.t.o.

please turn over

Business » General

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p.v.

vaginally (per vaginam) [ Lat.]

Medical

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P/A

Power of Attorney

Business » International Business

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P/A

Problem Analysis

Governmental » NASA

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P/A

Presence/Absence

Academic & Science » Chemistry

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P/B

Playback

Governmental » NASA

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P/B

Price-To-Book Ratio

Business » Accounting

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P/B

Preburner

Governmental » NASA

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P/B

Push Button

Governmental » NASA

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P/C

Pitch Control

Governmental » NASA

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