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osteophagia
osteophagia n. 
/ˌɑstioʊˈfeɪdʒ(i)ə/ an abnormal appetite for bones, esp. as a response to dietary calcium and phosphorus imbalance in herbivores.
Brit. /ˌɒstɪə(ʊ)ˈfeɪdʒ(ɪ)ə/
, /ˌɒstɪə(ʊ)ˈfeɪdʒ(ɪ)ə/U.S. /ˌɑstiəˈfeɪdʒ(i)ə/
, /ˌɑstiəˈfeɪdʒ(i)ə//ˌɑstioʊˈfeɪdʒ(i)ə/ΚΠ
1920 A. Theiler in Jrnl. Dept. Agric. Union S. Afr. 1 234 The general craving for rubbish is termed ‘allotriophagia’ and the distinctive craving for bones is termed ‘osteophagia’.
1935 Amer. Naturalist 69 492 (note) Young cattle brought up in an area carefully cleaned of all bone debris have yet been found to manifest osteophagia the first time bones were displayed before them.
1955 G. O. Davies Gaiger & Davies' Vet. Pathol. & Bacteriol. (ed. 4) xiv. 298 The condition is an aphosphorosis... This leads to the animal eating carrion such as rotten bones (osteophagia), parts of putrefying carcases, [etc.].
1996 Jrnl. Appl. Ecol. 33 688 Heathland animals showed..pica behaviour (geophagia, osteophagia and carnivory).
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