noun, adjective, verb, pet⋅ted, pet⋅ting.| 1. | any domesticated or tamed animal that is kept as a companion and cared for affectionately. |
| 2. | a person especially cherished or indulged; favorite: He was the teacher's pet. |
| 3. | a thing particularly cherished. |
| 4. | kept or treated as a pet: a pet lamb. |
| 5. | especially cherished or indulged, as a child or other person. |
| 6. | favorite; most preferred: a pet theory. |
| 7. | showing fondness or affection: to address someone with pet words. |
| 8. | to fondle or caress: to pet a dog. |
| 9. | to treat as a pet; indulge. |
| 10. | Informal. to engage in amorous fondling and caressing. |

pet 1 (pět) n.
v. tr. To stroke or caress gently; pat. See Synonyms at caress. v. intr. Informal To make love by fondling and caressing. [Scottish Gaelic peata, tame animal, pet, from Old Irish.] pet'ter n. |
| PET abbr. positron emission tomography |
| positron emission tomography n. Abbr. PET Tomography in which a computer-generated image of a biological activity within the body is produced through the detection of gamma rays that are emitted when introduced radionuclides decay and release positrons. |
PET abbr.
positron emission tomography
| PET positron emission tomography |