PR

Pronunciation (US):

(GB):

 Dictionary entry overview: What does PR mean? 

• PR (noun)
  The noun PR has 3 senses:

1. a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

2. a self-governing commonwealth associated with the United States occupying the island of Puerto Rico

3. a promotion intended to create goodwill for a person or institution

  Familiarity information: PR used as a noun is uncommon.

 Dictionary entry details 

• PR (noun)

Sense 1

Meaning:

A soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

Classified under:

Nouns denoting substances

Synonyms:

atomic number 59; Pr; praseodymium

Hypernyms ("Pr" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Holonyms ("Pr" is a substance of...):

bastnaesite; bastnasite (a yellow-to-brown mineral that is a source of rare earth elements)

monazite (a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium)

Sense 2

Meaning:

A self-governing commonwealth associated with the United States occupying the island of Puerto Rico

Classified under:

Nouns denoting spatial position

Synonyms:

Commonwealth of Puerto Rico; Porto Rico; PR; Puerto Rico

Instance hypernyms:

commonwealth (the official name of some states in the United States (Massachusetts and Pennsylvania and Virginia and Kentucky) and associated territories (Puerto Rico))

Meronyms (parts of "PR"):

Porto Rico; Puerto Rico (the smallest and easternmost of the Greater Antilles in the Caribbean)

San Juan (the capital and largest city of Puerto Rico)

Culebra (a small island off the coast of Puerto Rico with miles of beautiful beaches)

Vieques (a small island off the coast of Puerto Rico used for target practice by the United States Navy)

Holonyms ("PR" is a part of...):

Caribbean (region including the Caribbean Islands)

Greater Antilles (a group of islands in the western West Indies)

Sense 3

Meaning:

A promotion intended to create goodwill for a person or institution

Classified under:

Nouns denoting communicative processes and contents

Synonyms:

PR; public relations

Hypernyms ("PR" is a kind of...):

packaging; promo; promotion; promotional material; publicity (a message issued in behalf of some product or cause or idea or person or institution)

 Context examples 

The PR following block is shorter than the PR immediately preceding block.

(Mobitz I, NCI Thesaurus)

There is a constant PR interval in the conducted beats.

(Mobitz II, NCI Thesaurus)

One young woman I know left a huge PR job eight years ago to open her own business.

(AstrologyZone.com, by Susan Miller)

Lonaprisan is a pure, highly receptor-selective progesterone receptor (PR) antagonist; binding of this agent to PRs inhibits PR activation and the associated proliferative effects.

(Lonaprisan, NCI Thesaurus)

Test codes of questionnaire questions associated with the Pain Relief (PR) version 1 for the Clinical Data Interchange Standards Consortium (CDISC) Standard Data Tabulation Model (SDTM).

(CDISC Questionnaire PR v1 Test Code Terminology, NCI Thesaurus)

Test names of questionnaire questions associated with the Pain Relief (PR) version 1 for the Clinical Data Interchange Standards Consortium (CDISC) Standard Data Tabulation Model (SDTM).

(CDISC Questionnaire PR v1 Test Name Terminology, NCI Thesaurus)

An electrocardiographic finding of prolonged PR interval for a specific population.

(AV Block First Degree by ECG Finding, NCI Thesaurus/CDISC)

For adults one common threshold is a PR interval greater than 0.20 seconds.

(AV Block First Degree, NCI Thesaurus)

The receptors for estrogen (ER), progestin (PR), androgen (AR) and others are steroid hormone receptors, which are part of a large family of ligand-inducible transcription factors.

(Pelp1 Estrogen Receptor Pathway, NCI Thesaurus/BIOCARTA)

The minimum duration (time) of the PR interval, obtained from a set of measurements of the PR interval.

(Minimum PR Duration, NCI Thesaurus)