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| | | | | pyramid | พีระมิด, รูปทรงที่มีฐานเป็นรูปเหลี่ยมใด ๆ และมีด้านอื่น ๆ เป็นรูปสามเหลี่ยม มีจุดยอด(ซึ่งไม่อยู่บนระนาบเดียวกับฐาน)ร่วมกัน [พจนานุกรมศัพท์ สสวท.] | | pyramid bar chart | แผนภูมิแท่งพีระมิด, แผนภูมิแท่งที่เรียงซ้อนกันอยู่เป็นรูปพีระมิด [พจนานุกรมศัพท์ สสวท.] |
| | | | พีระมิด | (n) pyramid, Example: หลังจากเที่ยวชมพีระมิดแล้ว เจ้าหน้าที่ได้นำพวกเราล่องใต้มุ่งหน้าไปเมืองลุกซอร์, Count Unit: พีระมิด, Thai Definition: สิ่งก่อสร้างที่มีฐานเป็นรูปสี่เหลี่ยมจัตุรัส ด้านข้างทั้ง 4 เป็นรูปสามเหลี่ยม มีปลายสุดไปบรรจบกันที่ยอด, Notes: (อังกฤษ) | | เสี้ยม | (adj) pyramidal, See also: conical, Syn. แหลม, Ant. ทู่, Example: ชายหน้าเสี้ยมคนนั้น น่าสงสัยว่าจะเป็นสมุนของเจ้าพ่อค้ายาเสพติดรายใหญ่ | | เจดีย์ 2 | (n) Pyramidella punctata, Thai Definition: ชื่อหอยทะเลกาบเดี่ยวในวงศ์ Turritellidae เปลือกเวียนเป็นเกลียวสูงหลายชั้น ยอดแหลมคล้ายเจดีย์ |
| | กรวยเหลี่ยม | [krūaylīem] (n) EN: pyramid | | มณฑป | [mondop] (n) EN: square hall with a pyramidal roof ; mandapa ; mondop FR: dôme [ m ] ; pavillon à toiture pyramidale [ m ] | | พีระมิด | [phiramit] (n) EN: pyramid FR: pyramide [ f ] | | พีระมิดห้าเหลี่ยม | [phiramit hālīem] (n, exp) EN: pentagonal pyramid | | พีระมิดสามเหลี่ยมอีลองเกต | [phiramit sāmlīem īløngkēt] (n, exp) EN: elongated triangular pyramid | | พีระมิดสี่เหลี่ยมจัตุรัส | [phiramit sīlīemjatturat] (n, exp) EN: square pyramid | | ปิรามิด | [pirāmit] (n) EN: pyramid FR: pyramide [ f ] | | เรียว | [rīo] (adj) EN: tapering ; pyramidal ; slender ; weaken ; declined FR: effilé ; fuselé ; en pointe |
| | | | pyramid | (n) a polyhedron having a polygonal base and triangular sides with a common vertex | | pyramid | (n) (stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases | | pyramid | (n) a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt, Syn. Great Pyramid, Pyramids of Egypt | | pyramid | (v) enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts | | pyramid | (v) use or deal in (as of stock or commercial transaction) in a pyramid deal | | pyramid | (v) arrange or build up as if on the base of a pyramid | | pyramid | (v) increase rapidly and progressively step by step on a broad base | | pyramidal | (adj) resembling a pyramid, Syn. pyramidical, pyramidic | | pyramidal tent | (n) a large tent shaped like a pyramid; can hold half a dozen people | | pyramidal tract | (n) any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord, Syn. corticospinal tract, pyramidal motor system |
| | Pyramid | n. [ L. pyramis, -idis, fr. Gr. &unr_;, &unr_;, of Egyptian origin: cf. F. pyramide. ] [ 1913 Webster ] 1. A solid body standing on a triangular, square, or polygonal base, and terminating in a point at the top; especially, a structure or edifice of this shape. [ 1913 Webster ] 2. (Geom.) A solid figure contained by a plane rectilineal figure as base and several triangles which have a common vertex and whose bases are sides of the base. [ 1913 Webster ] 3. pl. (Billiards) The game of pool in which the balls are placed in the form of a triangle at spot. [ Eng. ] [ 1913 Webster ] 4. (Finance) a fraudulent investment scheme in which the manager promises high profits, but instead of investing the money in a genuine profit-making activity, uses the money from later investors to pay the profits to earlier investors; -- also called pyramid scheme or pyramid operation. This process inevitably collapses when insufficient new investors are available, leaving the later investors with total or near-total losses of their investments. The managers usually blame government regulations or interference for the collapse of the scheme, rather than admit fraud. [ PJC ]
Altitude of a pyramid (Geom.), the perpendicular distance from the vertex to the plane of the base. --
Axis of a pyramid (Geom.), a straight line drawn from the vertex to the center of the base. --
Earth pyramid. (Geol.) See Earth pillars, under Earth. --
Right pyramid (Geom.) a pyramid whose axis is perpendicular to the base. [ 1913 Webster ]
| | Pyramid | v. i. (Speculation) To enlarge one's holding or interest in a series of operations on a continued rise or decline by using the profits to buy or sell additional amounts on a margin, as where one buys on a 10% margin 100 shares of stock quoted at 100, holds it till it rises to 105, and then uses the paper profit to buy 50 shares more, etc. The series of operations constitutes a pyramid. A similar process of reinvesting gains or winnings (as of a gamble), but not involving operation on margin, is called a parlay. [ Webster 1913 Suppl. +PJC ] | | Pyramid | v. t. (Speculation) To use, or to deal in, in a pyramiding transaction. See Pyramid, v. i. [ Webster 1913 Suppl. ] | | Pyramidal | a. [ Cf. F. pyramidal. ] [ 1913 Webster ] 1. Of or pertaining to a pyramid; in the form of a a pyramid; pyramidical; as, pyramidal cleavage. [ 1913 Webster ] The mystic obelisks stand up
Triangular, pyramidal. Mrs. Browning. [ 1913 Webster ] 2. (Crystallog.) Same as Tetragonal. [ 1913 Webster ]
Pyramidal numbers (Math.), certain series of figurate numbers expressing the number of balls or points that may be arranged in the form of pyramids. Thus 1, 4, 10, 20, 35, etc., are triangular pyramidal numbers; and 1, 5, 14, 30, 55, etc., are square pyramidal numbers. [ 1913 Webster ]
| | Pyramidal | n. (Anat.) One of the carpal bones. See Cuneiform, n., 2 (b). [ 1913 Webster ] | | Pyramidally | adv. Like a pyramid. [ 1913 Webster ] | | Pyramidical | { } a. Of or pertaining to a pyramid; having the form of a pyramid; pyramidal. “ A pyramidical rock.” Goldsmith. “Gold in pyramidic plenty piled.” Shenstone. -- Pyr`a*mid"ic*al*ly, adv. Pyr`a*mild"ic*al*ness, n. [ 1913 Webster ] Variants: Pyramidic | | Pyramidion | ‖n.; pl. Pyramidia [ NL., from L. pyramis. See Pyramid. ] The small pyramid which crowns or completes an obelisk. [ 1913 Webster ] | | Pyramidoid | n. [ Gr. &unr_;, &unr_;, pyramid + -id: cf. F. pyramidoïde. ] A solid resembling a pyramid; -- called also pyramoid. Barlow. [ 1913 Webster ] |
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