n.
Pronunciation: ' ti-b ē - ə
Function: noun
Inflected Form: plural -i · ae \ -b ē - ˌ ē , -b ē - ˌ ī \ also -i · as
Etymology: L
Date: circa 1706
1 : the inner and usually larger of the two bones of the vertebrate hind or lower limb between the knee and ankle
2 : the fourth joint of the leg of an insect between the femur and tarsus
– tib · i · al \ -b ē - ə l \ adjective