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Aluminothermic reactions are exothermic chemical reactions using aluminium as the reducing agent at high temperature. The process is industrially useful for production of alloys of iron. The most prominent example is the thermite reaction between iron oxides and aluminium to produce iron itself:Fe2O3 + 2 Al → 2 Fe + Al2O3

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A beehive is an enclosed structure in which some honey bee species of the subgenus Apis live and raise their young. Though the word beehive is commonly used to describe the nest of any bee colony, scientific and professional literature distinguishes nest from hive. Nest is used to discuss colonies which house themselves in natural or artificial cavities or are hanging and exposed. Hive is used to describe an artificial/man-made structure to house a honey bee nest. Several species of Apis live in colonies, but for honey production the western honey bee and the eastern honey bee are the main species kept in hives.

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Borscht is a sour soup common in Eastern Europe and Northern Asia. In English, the word "borscht" is most often associated with the soup's variant of Ukrainian origin, made with beetroots as one of the main ingredients, which give the dish its distinctive red color. The same name, however, is also used for a wide selection of sour-tasting soups without beetroots, such as sorrel-based green borscht, rye-based white borscht and cabbage borscht.

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The Buteyko method or Buteyko Breathing Technique is a form of complementary or alternative physical therapy that proposes the use of breathing exercises primarily as a treatment for asthma and other respiratory conditions. The therapy takes its name from Soviet doctor Konstantin Pavlovich Buteyko, who first formulated its principles during the 1950s.

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Cossacks: European Wars is a real-time strategy video game for Microsoft Windows made by the Ukrainian developer GSC Game World. It was released on 24 April 2001. The game has an isometric view and is set in the 17th and 18th centuries of Europe. It features sixteen playable nations each with its own architectural styles, technologies and no limit on unit numbers.

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A hive frame or honey frame is a structural element in a beehive that holds the honeycomb or brood comb within the hive enclosure or box. The hive frame is a key part of the modern movable-comb hive. It can be removed in order to inspect the bees for disease or to extract the excess honey.

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A pernach is a type of flanged mace originating in the 12th century in the region of Kievan Rus' and later widely used throughout Europe. The name comes from the Slavic word перо (pero) meaning feather, referring to a type of pernach resembling an arrow with feathering.

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A postal code is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.

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In beekeeping, a queen excluder is a selective barrier inside the beehive that allows worker bees but not the larger queens and drones to traverse the barrier. Queen excluders are also used with some queen breeding methods. Some beekeepers believe that excluders lead to less efficient hives as often worker bees, not used to travelling through the excluder, are intimidated and stay in the lower brood box. This can lead to rapid filling of the brood box and overcrowding resulting eventually in the hive swarming.

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Ryazhenka or ryazhanka is a traditional fermented milk product in Belarus, Russia and Ukraine. It is made from baked milk by lactic acid fermentation.

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Ukrain is the trademarked name of a semi-synthetic substance derived from the plant Chelidonium majus and promoted as a drug to treat cancer and viral infections, including HIV and hepatitis. It was created in 1978, by a Ukrainian chemist Vasyl Novytskyi. Ukrain is named after the nation of Ukraine and is produced by the Austrian company Nowicky Pharma.

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In mathematics, a Voronoi diagram is a partition of a plane into regions close to each of a given set of objects. In the simplest case, these objects are just finitely many points in the plane. For each seed there is a corresponding region consisting of all points of the plane closer to that seed than to any other. These regions are called Voronoi cells. The Voronoi diagram of a set of points is dual to its Delaunay triangulation.