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
ad-

(L., toward, upon, or equal), adrenal , relating to the kidney; adduct, to draw one part towards another.

actin-actino

(Gr., ktis-ray)

acr, acri-, acis

(Gr-akris) Outermost top, point, tip

ab-

(L., away from or without), aboral, away from the mouth

a-or an-

(Gr., without or absent), asexual, without sex anaerobe organism that lives without free oxygen.

-ur

(Gr., tail, Anura , animals without tails.

-tome

(Gr., to cut), microtome , instrument to cut small sections.

-thec

(Gr., case), spermatheca , sperm-case.

-semi-

(L., half), semicircle , half of a circle.

-see!

(I. ., to cut), dissect , to cut.

-scope

(Or., see) microscope , instrument enabling one to see minute ‘objects.

-sare

(Or., flesh), ectosarc , outer flesh or layer of protoplasm.

-ptero

(Or., wing), Diptera , order of insect with two wings.

-porous

(Or., foot), octopus , animal with eight feet or appendages.

-pkism

(Or., formed), ectoplasm , outer region of the cell cytoplasm.