| / English Dictionary |
PR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A promotion intended to create goodwill for a person or institution
Synonyms:
Classified under:
Nouns denoting communicative processes and contents
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)
Sense 2
Meaning:
A self-governing commonwealth associated with the United States occupying the island of Puerto Rico
Synonyms:
Commonwealth of Puerto Rico; Porto Rico; PR; Puerto Rico
Classified under:
Nouns denoting spatial position
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 soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
Synonyms:
atomic number 59; Pr; praseodymium
Classified under:
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)
Context examples:
An electrocardiographic finding of a supraventricular arrhythmia characterized by 3 or more distinct P wave morphologies with an isoelectric baseline, variable PR intervals and no predominant atrial rhythm.
(Multifocal Atrial Tachycardia by ECG Finding, NCI Thesaurus/CDISC)
A disorder characterized by a dysrhythmia with relatively constant PR interval prior to the block of an atrial impulse.
(AV Block Second Degree Mobitz Type II, NCI Thesaurus/CTCAE)
An electrocardiographic finding of intermittent failure of atrial electrical impulse conduction to the ventricles, characterized by a relatively constant PR interval prior to the block of an atrial impulse.
(AV Block Second Degree Mobitz Type II by ECG Finding, NCI Thesaurus/CDISC)
A disorder characterized by an electrocardiographic finding of intermittent failure of atrial electrical impulse conduction to the ventricles, characterized by a relatively constant PR interval prior to the block of an atrial impulse.
(AV Block Second Degree Mobitz Type II, NCI Thesaurus/CDISC)
A disorder characterized by an electrocardiographic finding of intermittent failure of atrial electrical impulse conduction to the ventricles, characterized by a progressively lengthening PR interval prior to the block of an atrial impulse.
(AV Block Second Degree Mobitz Type I, NCI Thesaurus/CDISC)
A disorder characterized by a dysrhythmia with a progressively lengthening PR interval prior to the blocking of an atrial impulse.
(AV Block Second Degree Mobitz Type I, NCI Thesaurus/CTCAE)
An electrocardiographic finding of intermittent failure of atrial electrical impulse conduction to the ventricles, characterized by a progressively lengthening PR interval prior to the block of an atrial impulse.
(AV Block Second Degree Mobitz Type I by ECG Finding, NCI Thesaurus/CDISC)
As do all progestins, norethindrone binds to and activates nuclear progesterone receptors (PRs) in target tissues such as the pituitary and reproductive system; ligand-receptor complexes are translocated to the nucleus where they bind to progesterone response elements (PREs) located on target genes, followed by various transcriptional events and histone acetylation.
(Norethindrone Acetate, NCI Thesaurus)
A disorder characterized by a dysrhythmia with a delay in the time required for the conduction of an electrical impulse through the atrioventricular (AV) node beyond 0.2 seconds; prolongation of the PR interval greater than 200 milliseconds.
(AV Block First Degree, NCI Thesaurus/CTCAE)
Her reputation zoomed higher, she was so glad to run her own shop, and recently she started a second PR business.
(AstrologyZone.com, by Susan Miller)
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