| (เนื่องจากผลลัพธ์จากการค้นหา -suspiral- มีน้อย ระบบจึงเลือกคำใหม่ให้โดยอัตโนมัติ: spiral) |
มีผลลัพธ์ที่ไม่แสดงผลอยู่ | Suspiral | n. [ From Suspire. ] 1. A breathing hole; a vent or ventiduct. [ 1913 Webster ] 2. A spring of water passing under ground toward a cistern or conduit. [ 1913 Webster ] | | Spiral | a. [ Cf. F. spiral. See Spire a winding line. ] 1. Winding or circling round a center or pole and gradually receding from it; as, the spiral curve of a watch spring. [ 1913 Webster ] 2. Winding round a cylinder or imaginary axis, and at the same time rising or advancing forward; winding like the thread of a screw; helical. [ 1913 Webster ] 3. (Geom.) Of or pertaining to a spiral; like a spiral. [ 1913 Webster ]
Spiral gear, or
Spiral wheel (Mach.), a gear resembling in general a spur gear, but having its teeth cut at an angle with its axis, or so that they form small portions of screws or spirals. --
Spiral gearing, a kind of gearing sometimes used in light machinery, in which spiral gears, instead of bevel gears, are used to transmit motion between shafts that are not parallel. --
Spiral operculum, an operculum whih has spiral lines of growth. --
Spiral shell, any shell in which the whorls form a spiral or helix. --
Spiral spring. See the Note under Spring, n., 4. [ 1913 Webster ]
| | Spiral | n. [ Cf. F. spirale. See Spiral, a. ] 1. (Geom.) A plane curve, not reentrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed point called the pole. Cf. Helix. [ 1913 Webster ] 2. Anything which has a spiral form, as a spiral shell. [ 1913 Webster ]
Equiangular spiral, a plane curve which cuts all its generatrices at the same angle. Same as Logarithmic spiral, under Logarithmic. --
Spiral of Archimedes, a spiral the law of which is that the generatrix moves uniformly along the revolving line, which also moves uniformly. [ 1913 Webster ]
| | Spirality | n. The quality or states of being spiral. [ 1913 Webster ] | | Spirally | adv. In a spiral form, manner, or direction. [ 1913 Webster ] | | Spiralozooid | n. [ Spiral + zooid. So called because they often have a spiral form when contracted. ] (Zool.) One of the special defensive zooids of certain hydroids. They have the form of long, slender tentacles, and bear lasso cells. [ 1913 Webster ] |
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| | | | spiral movement | การเคลื่อนไหวแบบเกลียว, การเจริญเติบโตของพืชแบบหนึ่ง ปลายยอดที่เจริญจะค่อย ๆ บิดพันเสาหรือหลักเป็นกลียวเพื่อพยุงลำต้นให้ขึ้นไปที่สูง [พจนานุกรมศัพท์ สสวท.] |
| | ก้นหอย | (n) spiral, See also: helix, finger whorl, whorl, Example: มีผู้ขุดพบหม้อโบราณเขียนเป็นลายก้นหอยที่จังหวัดอุบลราชธานี, Thai Definition: รอยเส้นขดวนเข้าหาศูนย์กลางอย่างรูปก้นหอยมีที่นิ้วมือเป็นต้น |
| | | | | spiral | (n) a plane curve traced by a point circling about the center but at increasing distances from the center | | spiral | (n) a continuously accelerating change in the economy | | spiral | (n) ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center, Syn. volute | | spiral | (n) flying downward in a helical path with a large radius | | spiral | (v) form a spiral, Example: The path spirals up the mountain | | spiral bandage | (n) an oblique bandage in which successive turns overlap preceding turns | | spiral galaxy | (n) a galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center, Syn. spiral nebula | | spirally | (adv) with spirals, Example: spirally fluted handles | | spiral ratchet screwdriver | (n) a screwdriver with a ratchet (so the blade turns in only one direction) and a spiral in the handle (so the blade rotates) with downward pressure on the handle, Syn. ratchet screwdriver | | spiral-shelled | (adj) having a shell that forms a spiral |
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