brick(redirected from came up against a brick wall)
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Sports medicine An episode of one form of endurance exercise followed by another, used in endurance multisports—e.g., duathlons and triathlons; often the individual sports are practised separately and raced jointly; a brick stacks one upon the other in training; the most common brick is a bike-run session and is used to help transition the legs from cycling to running
Virology Inclusion body A popular albeit non-specific term for a crystalloid structure corresponding to packed viral particles within host cells
feed compacted into a solid mass weighing up to 2 lb. Bricks provide an alternative to pellets and have the advantage that they have to be eaten slowly.