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Term Definition
Freeboard. Distance between poolwater surface level and deck level.  
Freeform. Freely adapted poolshape.  
Freehand Floating. The application of wall mortar without the use of guide screeds; this technique is used by specialists when they are setting glass mosaic murals.  
Freestone. Fine-grained sedimentary rock that has no planes of cleavage or sedimentation along which it is likely to split.  
Freeway. see Expressway.  
Freezer Alarm. A bell or buzzer used in many freezers which sounds an alarm when freezer temperature rises above safe limit.  
Freezer Burn. Condition applied to food which has not been properly wrapped and that has become hard, dry, and discolored.  
Freeze-Up. see Frozen, 2.  
Freeze-Up. 1. Formation of ice in the refrigerant control device which may stop the flow of refrigerant into the evaporator. 2. Frost formation on an evaporator which may stop the airflow through the evaporator.  
Freezing Point. Temperature at which a liquid will solidify upon removal of heat. The freezing temperature for water is 32° F. (O° C.) at atmospheric pressure.  
Freezing. Change of state from liquid to solid.  
Freight Elevator. A hoisting device to raise or lower cargo.  
Freight-In. A merchandising account that records the transportation costs on purchases paid by the buyer.  
French Curve. A transparent plastic drafters tool for drawing miscellaneous curves.  
French Door. A door with rectangular glass panes extending the full length.  
French Drain. A trench filled with gravel, often with a perforated pipe on the bottom, to carry off intercepted subterranean drainage.  
French Polishing. High-grade wood finish obtained by applying shellac or French varnish with a cloth pad and linseed oil as a lubricant to prevent the pad from sticking.  
French Process Zinc Oxide. Zinc oxide pigment made from metallic zinc; sometimes called indirect process; see American Process Zinc Oxide.  
French Window. A pair of casement windows that reaches to the floor.  
Freon. Trade name for a family of synthetic chemical refrigerants manufactured by E. I. duPont de Nemours & Co., Inc.  
Freon-12. Dichlorodifluoromethane.  
Frequency Meter. A device used to measure vibrations in cycles per second.  
Frequency. 1. Commonness of occurrence. 2. The rate of recurrence of a vibration, oscillation, or cycle; the number of repetitions in a given time, such as per second; one vibration per second is one hertz.  
Fresco. The art of painting on fresh plaster with water-based pigments.  
Fresh Water. Those waters having a specific conductivity less than a solution containing six thousand (6,000) parts per million of sodium chloride.  
Fret. A decorative pattern of interlaced designs.  
Fretsaw. A finetoothed saw with its narrow blade held under tension, used for sawing curves.  
Fretwork. 1. Ornamental openwork designs in woodwork cut by a fretsaw. 2. In masonry, any ornamental openwork or work in relief.  
Friable Asbestos. Any materials that contain greater than one percent asbestos, and which can be crumbled, pulverized, or rced to powder by hand pressure; this may also include previously non-friable material which becomes broken or damaged by mechanical force.  
Friction Catch. Any catch which, when engaged in a strike, is held in the engaged position by friction.  

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