When water is stagnant, has a high temperature or a high concentration of Nitrates and Phosphates, an algae bloom might occur, which can cause several problems. Blue-green algae growth, also known as cyanobacteria, can cause a foul odour to the water, a layer of scum on the surface and even pose a health risk. Green algae may colour the water green, look unclear and plants can die. Therefore an algae problem is often unwanted and algae control is desired.
1 An alcoholic beverage made by distillation rather than by fermentation. 2  A rich broth resulting from the prolonged cooking of meat or vegetables, especially greens. 3  Also called pot liquor. 4  An aqueous solution of a nonvolatile substance. 5  A solution, emulsion, or suspension for industrial use.
Wiktionary(3.00 / 1 vote)Rate this definition: 1  liquor(Noun) A liquid. 2  liquor(Noun) A drinkable liquid. 3  liquor(Noun) A liquid obtained by cooking meat or vegetables (or both). 4  liquor(Noun) Strong alcoholic drink derived from fermentation and distillation. 5  liquor(Verb) To drink liquor, usually to excess.