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| | | | Parabola | พาราโบลา [TU Subject Heading] | | parabola | พาราโบลา, เซตของจุดทุกจุดบนระนาบ ซึ่งแต่ละจุดมีระยะห่างจากเส้นตรงคงที่ (ไดเรกทริกซ์)เป็นระยะทางเท่ากับระยะห่างจากจุดคงที่(โฟกัส)จุดหนึ่งเสมอ ดูรูป ไดเรกทริกซ์ [พจนานุกรมศัพท์ สสวท.] |
| | จานดาวเทียม | [jān dāothīem] (n, exp) EN: satellite dish FR: antenne parabolique [ f ] ; parabole [ f ] | | คตินิยาย | [khati niyāi] (n) EN: allegory ; parable ; fable FR: allégorie [ f ] ; parabole [ f ] | | มะขามป้อม | [makhāmpøn] (n) EN: Emblic Myrabolan ; Malacca Tree ; Indian Gooseberry ; Amala Plant ; Amalak Tree |
| | | | parabola | (n) a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve | | parabolic | (adj) resembling or expressed by parables, Syn. parabolical | | parabolic | (adj) having the form of a parabola, Syn. parabolical | | parabolic mirror | (n) a parabolic reflector for light radiation | | parabolic reflector | (n) a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam, Syn. paraboloid reflector | | paraboloid | (n) a surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis | | paraboloidal | (adj) having the shape of a paraboloid | | elementary geometry | (n) (mathematics) geometry based on Euclid's axioms, Syn. Euclidean geometry, parabolic geometry | | metagrobolized | (adj) totally perplexed and mixed up; - Wall Street Journal, Syn. metagrobolised, metagrabolized, metagrabolised, mystified, Example: all this duncical nonsense has my brains metagrobolized | | nandrolone | (n) an androgen (trade names Durabolin or Kabolin) that is used to treat testosterone deficiency or breast cancer or osteoporosis, Syn. Kabolin, Durabolin |
| | Parabola | n.; pl. Parabolas [ NL., fr. Gr. &unr_;; -- so called because its axis is parallel to the side of the cone. See Parable, and cf. Parabole. ] (Geom.) (a) A kind of curve; one of the conic sections formed by the intersection of the surface of a cone with a plane parallel to one of its sides. It is a curve, any point of which is equally distant from a fixed point, called the focus, and a fixed straight line, called the directrix. See Focus. (b) One of a group of curves defined by the equation y = axn where n is a positive whole number or a positive fraction. For the cubical parabola n = 3; for the semicubical parabola n = 3/2. See under Cubical, and Semicubical. The parabolas have infinite branches, but no rectilineal asymptotes. [ 1913 Webster ] | | Parabole | ‖n. [ L., fr. Gr. &unr_;. See Parable. ] (Rhet.) Similitude; comparison. [ 1913 Webster ] | | Parabolical | { } a. [ Gr. paraboliko`s figurative: cf. F. parabolique. See Parable. ] [ 1913 Webster ] 1. Of the nature of a parable; expressed by a parable or figure; allegorical; as, parabolical instruction. [ 1913 Webster ] 2. [ From Parabola. ] (Geom.) (a) Having the form or nature of a parabola; pertaining to, or resembling, a parabola; as, a parabolic curve. (b) Having a form like that generated by the revolution of a parabola, or by a line that moves on a parabola as a directing curve; as, a parabolic conoid; a parabolic reflector; a parabolic antenna. [ 1913 Webster +PJC ]
Parabolic conoid, a paraboloid; a conoid whose directing curve is a parabola. See Conoid. --
Parabolic mirror (Opt.), a mirror having a paraboloidal surface which gives for parallel rays (as those from very distant objects) images free from aberration. It is used in reflecting telescopes. --
Parabolic spindle, the solid generated by revolving the portion of a parabola cut off by a line drawn at right angles to the axis of the curve, about that line as an axis. --
Parabolic spiral, a spiral curve conceived to be formed by the periphery of a semiparabola when its axis is wrapped about a circle; also, any other spiral curve having an analogy to the parabola. [ 1913 Webster ]
Variants: Parabolic | | Parabolically | adv. 1. By way of parable; in a parabolic manner. [ 1913 Webster ] 2. In the form of a parabola. [ 1913 Webster ] | | Paraboliform | a. [ Parabola + -form. ] Resembling a parabola in form. [ 1913 Webster ] | | Parabolism | n. [ From Parabola. ] (Alg.) The division of the terms of an equation by a known quantity that is involved in the first term. [ Obs. ] [ 1913 Webster ] | | Parabolist | n. A narrator of parables. [ 1913 Webster ] | | Paraboloid | n. [ Parabola + -oid: cf. F. paraboloïde. ] (Geom.) The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas. [ 1913 Webster ] ☞ The term paraboloid has sometimes been applied also to the parabolas of the higher orders. Hutton. [ 1913 Webster ] | | Paraboloidal | a. Of, pertaining to, or resembling, a paraboloid. [ 1913 Webster ] | | Semiparabola | n. (Geom.) One branch of a parabola, being terminated at the principal vertex of the curve. [ 1913 Webster ] |
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