noun, verb, -sured, -sur⋅ing.| 1. | the act of cutting the hair or shaving the head. |
| 2. | the shaving of the head or of some part of it as a religious practice or rite, esp. in preparation for entering the priesthood or a monastic order. |
| 3. | the part of a cleric's head, usually the crown, left bare by shaving the hair. |
| 4. | the state of being shorn. |
| 5. | to confer the ecclesiastical tonsure upon. |
| 6. | to subject to tonsure. |

tonsure
in various religions, a ceremony of initiation in which hair is clipped from the head as part of the ritual marking one's entrance into a new stage of religious development or activity
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