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exo-
(EK-soh)outside, external
Greek for outside. The exoskeleton of an insect is on the outside; ectoplasm in biology is the outer layer of cell material.
prefixGreek
Place & directionSpellings:exoecto
Example words
exoskeleton
a hard outer covering that supports the body
exothermic
releasing heat outward
exotic
from a faraway, outside place
ectoplasm
the outer layer of the cytoplasm of a cell
Who it is for
Grades served: 6, 7, 8
Level 3Level 1 holds the word parts students meet first. Level 3 holds the ones that turn up in harder reading.
Related roots
Place & direction. Roots that locate things: under, over, between, before, after.
Browse all place & direction roots →