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Definition of Spinebill
1. n. Any species of Australian birds of the genus Acanthorhynchus. They are related to the honey eaters.
Definition of Spinebill
1. Noun. Any of the Australian birds of the genus ''Acanthorhynchus'', related to the honeyeaters. ¹
¹ Source: wiktionary.com
Medical Definition of Spinebill
1.