* DNA: The genetic material of a cell, containing instructions for building and maintaining an organism.
* Deoxyribose: A sugar molecule found in DNA.
* Diphosphoglycerate: A molecule involved in red blood cell metabolism.
* Dendrite: A branch-like extension of a neuron that receives signals from other cells.
* Desmosome: A type of cell junction that helps cells adhere to each other.
* Diaphragm: A muscle that separates the chest cavity from the abdomen and plays a role in breathing.
* Diffusion: The movement of molecules from an area of high concentration to an area of low concentration.
* Division: The process by which cells reproduce.
Do you have a specific type of "d" word in mind?
