Dyneins

Part of speech: noun

Definitions

1. A type of motor protein that moves along microtubules to transport cellular cargo within eukaryotic cells
2. A family of ATP-dependent motor proteins that facilitate the movement of organelles and vesicles by "walking" along cytoskeletal filaments
3. Essential components in cell biology, these proteins are vital for cargo transport and play a role in cellular processes like mitosis and cilia movement

Etymology: "Dyneins" is the plural of "dynein", the name for a family of large motor proteins that move cargo along the microtubule tracks inside living cells. The plural form is what you need when discussing more than one member of that family. The name is built from two parts. "Dyne" is a unit of force in the centimetre-gram-second system, taken from the Ancient Greek "dúnamis", meaning "force" or "power", and the ending "-in" is the standard chemical suffix used for proteins. Together they point to what these molecules do: they generate the mechanical force that drives movement inside the cell.