Prefixes & Suffixes

The following list is by no means complete, but it may help in understanding some difficult terminology. The following abbreviations are used ; Gr., for the Greek ; L., for the Latin.
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Term Definition
re-

(I. ., again or back), regenerate , to form again.
ren-

(I.., kidney), renal , pertaining to the kidney.
rept-

(I. ., creeping), reptile , creeping animal.
retro-

(I. ., backward), retrolingual , backward from the tongue.
rhabdo

(Or., rhabdos-rod), e.g. rhab, possessing straight rod-like intestine.
rhizo-

(Or., root), Rhizopoda , subclass of animals with root-like appendages.
rhodo-

(Or., red), Rhodophyta , phylum of red algae.
roti-

(I.., wheel), rotifer , animal with a wheel-like structure on its head.