As nouns the difference between grapsoid and graphoid
is that grapsoid is (zoology) any of the crabs in the genus grapsus or family grapsidae while graphoid is (mathematics) a particular form of matroid.
As an adjective grapsoid
is (zoology) relating to the genus.
graphoid
English
Noun
(
en noun)
(mathematics) A particular form of matroid
References
* MathWorld