General Terms:
* Cowlick: This is a common term for a patch of hair that grows in a different direction from the surrounding hair, often forming a small swirl or bump.
* Whirl: Similar to a cowlick, but may be larger and more pronounced.
* Spiral: A more descriptive term for hair that grows in a circular or spiral pattern.
* Patch: A general term for any area of hair that is different from the surrounding hair, including in terms of color, texture, or direction of growth.
More Specific Terms:
* Crown: This refers to the top of the head, where hair often grows in a different direction than the rest of the head.
* Nape: This refers to the back of the neck, where hair may grow in a whorl or cowlick.
Other Possibilities:
* Hair whorl: A more scientific term for a patch of hair that grows in a circular pattern.
* Hair defect: A term used if the tuft of hair is caused by a medical condition.
The best term to use will depend on the specific situation. If you're unsure, you can always ask a hairdresser or dermatologist.