(used as a modifier before a noun) Lasting the full spectrum of life, existence, or a given process; that is, from the first point to the very last. Derived from the phrase "from the cradle to the grave" (or "from cradle to grave"). Our cradle-to-grave assessment of material processing ensures that our products remain environmentally sustainable at all levels of development. This cradle-to-grave study will monitor the effects of the drug from patients' infancy until their death, allowing for a comprehensive assessment of its benefits and potential side effects.