| 1. | a person or thing that marks. |
| 2. | something used as a mark or indication, as a bookmark or tombstone. |
| 3. | a person who records the scores, points, etc., as in a game or contest. |
| 4. | a counter used in card playing. |
| 5. | Genetics. genetic marker. |
| 6. | Psychology. an object, as a book or topcoat left at a library table, used to establish territorial possession in a public place. |
| 7. | Linguistics.
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| 8. | a small radio beacon, automatically operated, used for local navigation of vessels. |
| 9. | mile-marker. |
| 10. | Also called marker pen, marking pen. a pen designed for making bold, colorful, or indelible marks, as in making signs or identifying objects. |
| 11. | Slang.
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| 12. | Also called marker crude. Commerce. a grade of oil on which prices of other crude oils are based. |
| 13. | Citizens Band Radio Slang. one's location while driving on a highway, as determined by the nearest milepost. |
| 1. | any distinct inheritable indicator of identity and ancestry. |
| 2. | HLA antigen. |
| 3. | a chromosomal landmark or allele that allows for the tracing of a specific region of DNA, as in the study of recombination. |
| a numbered milepost along a highway: used as a way of determining the exact location of a vehicle. |
marker
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genetic marker n.
A gene phenotypically associated with a particular, easily identified trait and used to identify an individual or cell carrying that gene.
marker mark·er (mär'kər)
n.
One that marks or serves as a mark.
A physiological substance, such as human chorionic gonadotropin or alpha-fetoprotein, that may indicate disease when present in abnormal amounts in the serum, as that caused by a malignancy. Also called biomarker.
A genetic marker.