| sac | any of five pairs of spinal nerves emerging from the sacral region of the spinal cord |
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| sac | a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves |
| sac | vein of the sacral region |
| sac | one of 5 vertebrae in the human spine that fuse in the adult to form the sacrum |
| sac | a formal religious act conferring a specific grace on those who receive it |
| sac | a Christian sacrament commemorating the Last Supper by consecrating bread and wine |
| sac | of or relating to or involving a sacrament |
| sac | the act of participating in the celebration of the Eucharist |
| sac | a consecrated ointment consisting of a mixture of oil and balsam |
| sac | used in a communion service |
| sac | a city in north central California 75 miles northeast of San Francisco on the Sacramento River |
| sac | mountain range in New Mexico east of the Rio Grande |