(ecology) A theory involving natural selection based on quantity.

A radio-controlled vehicle.

plural of R/C

plural of r-value

plural of R-module

Initialism of Digital Versatile Disc recordable: a form of digital media that is similar to a CD, but has far denser storage and thus greater capacity. It can only be written to once, but can be read from an indefinite number of times.

Censored spelling of motherfucker.

(phonetics) An "r" sound that is like a linking r but occurs despite the absence of "r" in the spelling, as in Asia and the Far East in some pronunciations.

(as a closing in a message) Initialism of very respectfully.

(automotive) Initialism of road and track.; used to indicate a high performance edition of a vehicle or part, capable of use for everyday driving as well as amateur racing.