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dionysian
Dionysus
Diophantine equation
diopside
diopter
dioptric
dioptrics
diorama
diorite
Dioscuri
dioxane
dioxide
dioxin
dip
dip.
dip into
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diorite

di·o·rite [ d ə rt ]


noun 
Definition:
 
dark coarse-grained rock: a dark granular igneous rock that consists of plagioclase and a ferromagnesian mineral such as hornblende. Use: surfacing roads.

[Early 19th century. < Greek diorizein "distinguish" < orizein "to limit"]

di·o·rit·ic [ d ə ríttik ] adjective
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