Having prongs or projections like the tines of a fork; as, a three-pronged fork.
source: Webster 1913
adjective satellite
having prongs or tines; usually used in combination
A three-tined fork.
source: WordNet 3.0
resembling a fork; divided or separated into two branches
The biramous appendages of an arthropod. Long branched hairs on its legson which pollen collects. A forked river. A forked tail. Forked lightning. Horseradish grown in poor soil may develop prongy roots.