Hydrodilate

Part of speech: verb

Definitions

1. To expand or stretch a structure or vessel by the application or infusion of fluid; to cause dilation through the use of water or other liquids; a process of fluid-based enlargement or widening
2. To increase the diameter or capacity of a tube, cavity, or channel through liquid introduction; to induce expansion by means of fluid pressure; a technique involving hydraulic distension
3. To cause swelling or broaden a passage by injecting or filling it with water or another fluid; a method of enlarging using hydrous force; applying fluid to achieve dilatation

Etymology: "Hydro-" comes from the ancient Greek "hydor," meaning water, and "dilate" comes from the Latin "dilatare," formed from "dis-" (apart) and "latus" (wide). Joined together, the parts give a literal sense of widening something by means of water. This is a technical coinage built from classical parts rather than an inherited word. It appears mainly in specialist writing, where it describes procedures that inflate a passage, vessel, or joint with fluid. Its exact coinage and first recorded use are not something I can confirm.

Synonyms: expand, dilate, distend, enlarge

Antonyms: contract, shrink, constrict