geneticist

noun

1. A scientist who studies genes.

   “In an ingenious approach, a team of 11 scientists – including biologists, geneticists, glaciologists, computer scientists and ice-sheet modellers – looked at the genetics of Turquet’s octopus – a species that has been living around the Antarctic continent for about 4m years.”

2. A physician who diagnoses, treats, and counsels patients with genetic disorders or syndromes.

   “The geneticist said Ryan had a rare genetic disorder called mucopolysaccharidosis I, or MPS I, with a wide-range of symptoms affecting multiple systems in the body.”