RSD

1.
repetitive strain disorder.
RSD
reflex sympathetic dystrophy

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Rsdl
RSDL reverse spiral dual layer
RSE
1. Received Standard English.
R-selected
Ecology. 1. selection occurring when a population is far below the carrying capacity of an unstable environment: tends to favor individuals that reproduce early, quickly, and in large numbers so as to make use of ephemeral resources and ensure that at least some offspring survive.

R-selection
Ecology. 1. selection occurring when a population is far below the carrying capacity of an unstable environment: tends to favor individuals that reproduce early, quickly, and in large numbers so as to make use of ephemeral resources and ensure that at least some offspring survive.
Rs flip-flop
SR flip-flop