(often hyphenated) A man's formal coat worn as the principal item in morning dress, it also used for royal ascot and weddings.

The fraction of an anticoagulated blood sample that contains most of the white blood cells and platelets following density gradient centrifugation of the blood.

(archaic) The escutcheon of a person or family, with its charges, mantling, crest, supporters, motto, etc. / (historical) A silk vest embroidered in colours, worn by a knight over the armour.

plural of coat armour

(historical) A defensive garment made of metal scales or interlinked metal rings.

The finishing or last coat of plastering on walls or ceilings.

(archaic, card games) A face card, picture card or court card; the king, queen, or jack.

A pair of buttons or studs joined by a link, to hold together the lapels of a double-breasted coat; or a button with a loop for a single-breasted coat.

(nautical) A canvas cover laced over furled sails etc. to keep them dry and clean.

(nautical) A piece of canvas nailed around a mast, where it passes through the deck, to prevent water from getting below.