Definition of "jimpy" in English

adjective

1. Neat, jimp.

noun

1. (biology) A sex-linked mutation in mice that causes severe hypomyelination in males.

   • 1999, Klaus-Armin Nave, Chapter 2: X-Linked Dysmyelination: Mouse Models of Pelizaeus-Merzbacher Disease, Brian Popko (editor), Mouse Models in the Study of Genetic Neurological Disorders, Kluwer Academic / Plenum Publishers, page 29, The jimpy phenotype is marked by a CNS-specific dysmyelination and has provided an authentic animal model for PMD (Sidman et al., 1964). Typically, 50% of the male progeny of jimpy carrier females are affected, whereas the heterozygous carrier female itself is unaffected.

adjective

1. (biology) Of, pertaining to, carrying or affected by the mutation.

noun

1. (military, slang) A general-purpose machine gun (GPMG).

   • 1985 [Hodder and Stoughton], Terence Strong, Conflict of Lions, 2014, Silver Fox Press, unnumbered page, Before they had come to a standstill, the protective cover had come off the powerful twin GPMG ‘jimpies’ mounted in the rear compartment by the laconic Australian, Corporal Kangers Webster.