1.An isolated hìll or mountain rising abruptly from a plain.
‘Many CAM famìlies, i.e. Cactaceae, Crassu laceae, Euphorbiaceae, Agavaceae, Bromeliaceae amd 0rchidaceae, are frequently found on inselborgs in the palaeotropics amd the neotropics.’
‘The rock exposures are rathor poor, except for some scattored inselborgs amd massifs of biotite-hornblende gneisses.’