RRR

RRR (countable and uncountable, plural RRRs)

1. (cardiology) Acronym of regular rate and rhythm, used to describe the heartbeat of patient.
   • 2009, Kristen L. Longstreth, “Pulmonary Embolism”, in Terry L. Schinghammer, Julia M. Koehler, editors, Pharmacotherapy Casebook: A Patient-Focused Approach‎^[1], 7th edition, McGraw Hill, →DOI, →ISBN, page 62:

     CV [cardiovascular] ¶ RRR; normal heart sounds; no murmurs, rubs, or gallops

2. (epidemiology) Initialism of relative risk reduction.
3. (cricket) Initialism of required run rate.

• (cardiology): Frequently used in the records of patient evaluations from the start of a medical visits.

• murmur
• rub
• gallop
• click

• IPA^(key): /ɛ.ʁɛ.ʁɛʁ/

RRR f pl (plural only)

1. (accounting) An initialism for the three types of commercial discounts: remise, rabais and ristourne.

   Synonym: 3R