1. A triangular bone at the base of the vertebral column.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sacrasm,
• sacum,
• sacry,
• sactum,
• sarum,
• sakrua,
• sacasm,
• surum,
• garum,
• scrue,
• sectrum,
• secrue,
• secrut,
• screm,
• secum,
• syrum,
• specrum,
• sirum,
• bacrim,
• sucum

• sacrament,
• scrumpy,
• scrum,
• saccharum.

The adjective form of the word "sacrum" is "sacral".

The plural of the "sacrum" can be the "sacra".

The singular of the "sacrum" can be the "sacrum".