Calade n. : A slope or declivity in a manege ground down which a horse is made to gallop, to give suppleness to his haunches.

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Taxonomy
Calade, free encyclopedia, search, articles link, arrangement, medium-sized, pebbles, ground, the French, the Mediterranean, Mediterranean area, Personal tools, Interaction, Toolbox, Languages, non-profit organization, orphan, French term.

Defination from the web:
Calade is a French term for an harmonious, decorative and useful arrangement of medium-sized pebbles, fixed to the ground. Rue en calade describes a road with a surface composed in this way — essentially a cobblestone road. ...