n.
Pronunciation: ˌ tre-by ə - ' shet, -b ə -, - ' chet
Variant: or treb · uc · ket \ ˌ tre-b ə - ' ket \
Function: noun
Etymology: Middle English trebochet, from Anglo-French trebuchet
Date: 15th century
: a medieval military engine for hurling heavy missiles (as rocks)