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 it can be read from an indefinite number of times.

(organic chemistry) A crystalline sulfonic acid, HOC₁₀H₅(SO₃H)₂, derived from beta naphthol and used as a dye intermediate; 2-naphthol-3,6-disulfonic acid.

Resistance-value - A measure of thermal resistance used in domestic insulation.

(slang, humorous) Ritalin, an amphetamine-like psychopharmaceutical, prescribed for ADHD.

Alternative spelling of R & B

Abbreviation of rhythm and blues. / Ellipsis of contemporary R&B.

Initialism of resisting and obstructing

Initialism of regular and frequent.

(physics, astronomy) The relatively rapid nucleosynthesis process, in supernovae, in which a large neutron flux allows rapid neutron capture and synthesis of elements up to the transuranic elements.

a Soviet rocket modelled on the V-2; the Scunner