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
octo-

(L., eight), octopus , animal with eight appendages.

oedo-

(Gr., swollen), edema (oedema), swollen condition.

oligo-

(Gr., few or little), oligotrichous , having few cilia.

omni-

(L., omnis-all) e.g. omnivore.

Oo-

(Gr., egg), oogenesis , formation and development of an egg.

or-

(L., mouth), oral , pertaining to the mouth.

ortho-

(Gr., straight), Orthoptera , order of insects with straight wings.

Os-

(Gr., bone), osseQus , pertaining to bone.

ovi-

(L., egg), ovum , egg.oviparous mammals