A device that removes airborne particles from breathable air. Negative ions are produced and give up their negative charge to the particles. These new negative particles are then attracted to the positive particles surrounding them. This accumulation proc ...

Filtering device used to remove the solid debris from the cooling water.

A building heating, ventilation, and/or air conditioning system that distributes conditioned air to individual zones or rooms.

Said of a vessel when water level has fallen from the level at which she would float, so she would be aground and need to wait for the next tide before re-floating. Also said of the water that has receded and caused a vessel to go aground.

Used for hoisting a topmast or topgallant mast on a square rigged ship.

Abbreviation for "Destination Rail Freight Station." Same as CFS at destination, except a DRFS is operated by the rail carrier participating in the shipment.

Speed or velocity of current (2) The leeway, or movement of the boat, when not under power, or when being pushed sideways while under power

In reference to solar thermal collectors, the condition where the heat transfer fluid is flowing through the collector loop under normal operating conditions.

Pounds/force per square inch gauge.

A contract in which payment of premiums covers the insured against something which may, or may not.

Precipitation composed of white or translucent ice crystals, chiefly in complex branched hexagonal forms.

The fluid entering a component.

An elevated guardrail set up at the bow of a vessel. When erected at the stern, it is called a pushpit.

A slightly sloped roof, usually with a tar and gravel cover. Most commercial buildings use this kind of roof.

Insulation made from rockwool fibers, fiberglass, cellulose fiber, vermiculite or perlite minerals, and composed of loose fibers or granules can be applied by pouring directly from the bag or with a blower.

A term for the process of transmitting electricity over transmission lines not owned by the supplier of the electricity to a retail customer of the supplier. With retail wheeling, an electricity consumer can secure their own supply of electricity from a b ...

States that the volume of a gas, at constant temperature, varies inversely with the pressure.

A term, used by some assurance companies, as an alternative to.

A red and white vertically striped buoy used in the United States to mark the middle of a channel. Midchannel buoys may be passed by on either side.

To take in, or lower a sail. To put out a light. To cover with water.