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
pre-

(L. before), prenatal , before birth.

pro-

(Or., before), prostomium , portion ofthe head situated before the mouth of certain worms and molluscs.

proto-

(Or., first of essential), protoplasm , essential material of all plant and animal cells.

prox-

(L., nearest), proximal , nearest.

pseudo-

(Or., false), pseudopodia , false feet.