Alpine house
noun
a greenhouse especially designed for alpine (high mountain) regions, designed to control temperature, moisture, and ‘photoperiod’ light levels and air flow to replicate alpine habitats accurately
Usage Note
science
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a tundra that is treeless because of high elevation rather than high latitude.
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Chemistry. a white, heavy, amorphous, odorless and tasteless, infusible, water-insoluble powder, ZrO 2 , used chiefly as a pigment for paints, an abrasive, and in the manufacture of refractory crucibles. noun a white amorphous powder that is insoluble in water and highly refractory, used as a pigment for paints, a catalyst, and an abrasive. Formula: […]
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a metallic element found combined in , baddeleyite, etc., resembling titanium chemically: used in steel metallurgy, as a scavenger, as a refractory, and as an opacifier in vitreous enamels. Symbol: Zr; atomic weight: 91.22; atomic number: 40; specific gravity: 6.49 at 20°C. Contemporary Examples The other source of vector is the reaction between the zirconium […]