preclinical /prē-klinˈi-kəl/ (medicine)

1. Taking place before, or without yet having gained, practical clinical experience with patients
2. Of, relating to or occurring during the stage before the symptoms of a disease are recognizable
3. (of a drug) not yet having undergone clinical testing

• quadriga
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• quadrigeminal
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• quadrigeminous
• quadrilateral
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• quadrilaterals
• quadrilingual
• quadriliteral
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• quadrille
• quadrilled
• quadriller
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• quadrilles
• quadrilling
• quadrillion
• quadrillions
• quadrillionth
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• quadrilocular
• quadringenaries
• quadringenary
• quadrinomial