Apophyllite
a hydrous pot-ssium and calcium silicate mineral occurring in white crystals.
historical examples
apophyllite, a species of mineral of a foliated structure and pearly l-stre, called also fish-eye stone.
the new gresham encyclopedia. vol. 1 part 2 various
apophyllite always occurs as distinct crystals, which belong to the tetragonal system.
encyclopaedia britannica, 11th edition, volume 2, slice 3 various
noun
a white, colourless, pink, or green mineral consisting of a hydrated silicate of calcium, pot-ssium, and fluorine in tetragonal crystalline form. it occurs in cracks in volcanic rocks. formula: kca4(si4o10)2(oh1f).8h2o
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anatomy, botany. an outgrowth; process; projection or protuberance. architecture, . historical examples apophysis, any irregular swelling; the enlargement at the base of the spore-case of the umbrella-moss. the elements of botany asa gray no ctenidium, but a pulmonary cavity; operculum with an apophysis. encyclopaedia britannica, 11th edition, volume 11, slice 5 various the central region […]
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anatomy, botany. an outgrowth; process; projection or protuberance. architecture, . noun (pl) -ses (-ˌsiːz) a process, outgrowth, or swelling from part of an animal or plant (geology) a tapering offshoot from a larger igneous intrusive m-ss apophysis a·poph·y·sis (ə-pŏf’ĭ-sĭs) n. pl. a·poph·y·ses (-sēz’) an outgrowth or projection of an organ or part, especially an outgrowth […]
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apophysitis apophysitis a·poph·y·si·tis (ə-pŏf’ĭ-sī’tĭs) n. inflammation of an apophysis.
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noun (botany) the nonprotoplasmic component of a plant, including the cell walls and intercellular material
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of or relating to . having or inclined to . intense enough to threaten or cause : an apoplectic rage. a person having or predisposed to . historical examples the elector’s face was apoplectically purple from rage and haste, his breath came in wheezing gasps. the historical nights entertainment, second series rafael sabatini his face […]