the.com/calotte

the little skullcap that quietly tells popes from cardinals from priests by sheer color coding

means A small, close-fitting skullcap, especially the ecclesiastical one worn by Catholic clergy, where its color marks rank.

from From French calotte, a small cap, likely a diminutive of cale, a kind of close-fitting headdress or coif. The word also drifted into geometry and anatomy, where a calotte is any little dome or cap-shaped portion — the skull's own crown of bone, for instance — keeping faith with its small, rounded sense.

color rank
White for popes, red for cardinals, purple for bishops
name origin
From French, meaning a small cap or crown
removal etiquette
Worn even during Mass, but removed for consecration
beyond church
Also names the rounded top of a dome architecturally
anatomy too
Describes the skull's cranial vault in dissection
for instance

svalbard global seed vault — underground seed bank in arctic norway storing 1 million crop varieties

greenland ice sheet — massive polar ice dome covering 80% of greenland, melting rapidly since 2000

antarctic ice sheet — world's largest ice calotte containing 26.5 million cubic kilometers of ice

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