aqua-, aquatic-, aqui-, aqu-, -aquatically, aque-, -aqueous

(Latin: water, watery solution)

1. A leaky confining bed that transmits water at a very slow rate to or from an adjacent aquifer.
2. A geologic formation that may contain ground water but is incapable of transferring that water to the surface.
3. A bed of low permeability adjacent to an aquifer.

An aquitard may serve as a storage unit for groundwater, although it does not yield water readily.

1. The state of being watery.
2. The quality or state of being moist or wet; moisture.
Cave tibi cane muto, aqua silente. (Latin expression)
Translation: "Beware of the silent dog and still water."

A Latin idiom: "Stagnant water can poison you." "Silent dogs can bite." Some Romans believed that taciturn (uncommunicative) adversaries were more dangerous than the ones who made a lot of noise.

Consisting of chyle that is much diluted with water.

It refers to a liquid which forms the circulating fluid of some inferior animals.

geothermal aquaculture (s) (noun), geothermal aquacultures (pl)
The use of geothermal heat in fish farming: Geothermal aquaculture is used to warm up the water in order to provide a controlled environment for the husbandry of marine organisms.
Embodied in, or changed into, water.
Isopaque (s) (noun), Isopaques (pl)
A medical contrast medium, or contrast agent, that is a trademark which is used for the preparation of a diagnostic radiopaque medium: An Isopaque is a substance used to enhance the variations of structures or fluids within the body during medical X-ray imaging.

The Isopaque is commonly used to show the differences between the visibility of blood vessels and the gastrointestinal tract in the body.

Located around the cerebral aqueduct (channel in the brain which connects the third ventricle to the fourth ventricle); usually in reference to periaqueductal grey (region of grey matter in the brain), or some other part of the anatomy.
Not aquatic but indigenous to moist regions.
1. Partially aquatic; living or growing partly on land and partly in water.
2. Having an aquatic early or larval form and a terrestrial adult form.
3. Adapted for living or growing in or near water; not entirely aquatic: "They were looking for semiaquatic plants and animals."
sewer (s) (noun), sewers (pl)
1. A waste pipe that carries away sewage or surface water.
2. An artificial conduit, usually underground, for carrying off waste water and refuse, as in a town or city.
3. Someone who sews: "She was a sewer of fine gowns."
4. Misfortune resulting in lost effort or money: "All that work went right down the sewer."
5. Etymology: "conduit" from about 1402; from Anglo-French sewere, Old Norse French sewiere, "sluice from a pond"; literally, "something that makes water flow", from aphetic form (alteration of a word by loss of a short, unaccented vowel at the beginning) of Gallo-Romance exaquaria; from Latin ex-, "out" + aquaria, feminine of aquarius, "referring to water" from aqua, "water".
sewerage (s) (noun), sewerages (pl)
1. A network of waste pipes that carries away sewage or surface water: A sewerage can be a pipe, or a pipe system, in which liquid is carried away, like a waste pipe.
2. Waste matter, or materials, carried away in sewers or drains: The sewerage wasn't being transported away from the house in the correct way, so the plumber had to be called.
subaquatic (adjective), more subaquatic, most subaquatic
1. Living or growing partly on land and partly in water: "A marginal subaquatic flora."
2. Growing or remaining under water.
3. Being under water, or beneath the surface of water; adapted for use under water; such as, a submarine or a subaqueous helmet.
4. Formed in or under water; such as, "subaqueous deposits".
5. The practice of going underwater with or without a breathing apparatus.

When done for sport, this is sometimes called subaquatics. There are different kinds of underwater diving.

  • Snorkeling and free diving: swimming underwater without a breathing apparatus. An apparatus used by swimmers and skin divers, consisting of a long tube held in the mouth.
  • Scuba diving and surface supplied diving: swimming or walking underwater with a breathing apparatus.
subaqueous (adjective) (not comparable)
1. Formed or adapted for underwater use or operation; such as, a submarine.
2. Found, existing, or occurring underwater; for example, subaqueous organisms; subaqueous rocks.
terraqueous (adjective), more terraqueous, most terraqueous
Referring to land and water: The Earth is a terraqueous globe.

This reference is given as a description of the Earth's surface, of which more than three fifths consist of water, and the remainder of Earth or solid materials.

The world's population is expected to double its current five billion by the year 2010. By then, a very large number of people will probably be facing severe drought. Globally, there is enough fresh water for twice the estimated population. The problem is that the water is not in the right places.
Facts & Fallacies, Reader's Digest, Association, Inc., 1988.

Cross references of word families that refer to "water": hydat-; hydro-; hygro-.