A type of chromium-tanned calfskin leather with a regular grain of rectangular lines.

Alternative form of box calf

(inorganic chemistry) The calcium salt of acetic acid

(inorganic chemistry) The inorganic salt Ca₃(AsO₄)₂ that is used as a pesticide and germicide

(law) A timespan of exactly 24 hours, measured from one midnight to the next. / A day having a conventional designation on a recognized calendar, such as a numerical identification within a named month.

A bright brown polished calfskin binding for books, stained with a conventional tree-like design.

(bookbinding) calfskin stained dark brown and worked without gilding, often used for theological books

(mathematics) A formal system in which index notation is used to define tensors and tensor fields and the rules for their manipulation; the theory of tensor calculus as developed by Gregorio Ricci-Curbastro, which formed the foundation of the modern theory.

Brass produced by a particular alloying technique using the zinc ore calamine directly, rather than first refining it to metallic zinc.

(mathematics, logic) A set of inference rules for deriving true sequents from other true sequents.