n.
Pronunciation: ' sa-kr ə m, ' s ā -
Function: noun
Inflected Form: plural sa · cra \ ' sa-kr ə , ' s ā - \
Etymology: New Latin, from Late Latin os sacrum last bone of the spine, literally, holy bone, translation of Greek hieron osteon
Date: 1753
: the part of the vertebral column that is directly connected with or forms a part of the pelvis and in humans consists of five fused vertebrae