Noun
A piece of defensive or ornamental armor (with or without a vizor) for the head and neck; a helmet.
Source: Webster's dictionaryContrary to earlier findings, citation the hollow inside of the casque is spanned with fine fibres which are believed to have an acoustic function. citation Several functions of the casque have been proposed. Source: Internet
Cassowaries eat fallen fruit and consequently spend much time under trees where seeds the size of golfballs or larger fall from heights of up to 30 m; the wedge-shaped casque may protect the head by deflecting falling fruit. Source: Internet
The lexicon mostly comprises deformed or truncated Latinate stems (flam "fire" ← Latin flamma; lap "stone" ← Latin lapis; leg "to read" ← Latin legō), but other origins are also apparent (uis "wisdom" ← English wise; kas "helmet" ← French casque). Source: Internet
Harmer, S. F. & Shipley, A. E. (1899) Close-up of the head of a southern cassowary All three species have a keratinous skin covered casque on their heads which grows with age. Source: Internet
Males and females are very similar, however the male has a lager casque in top of the bill. Source: Internet
The casque is a lot less conspicuous than that of the Trumpeter Hornbill. Source: Internet