| Band of colors produced when ray of sunshine is bent by glass prism.
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| The band of colors, as seen in a rainbow, arranged in a progressive series according to their refrangibility or wavelength.
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| Mirror-like reflectance.
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| Assumption of unusual business risk in hopes of obtaining commensurate gain.
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| A reflector in an optical instrument.
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| Zinc, with impurities, cast into slabs for commercial use.
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| Atypical mosses that grow only in wet acid areas, combined with other decomposed plant debris to form peat moss.
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| A solid figure, or its surface, with every point on its surface equidistant from its center; a ball shape.
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| A shape resembling a sphere.
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| Any of several ancient Egyptian stone figures having a lions body and a human or animal head.
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| The Society of the Plastic Industry, Inc.
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| A knot cut approximately parallel to its long axis so that the exposed section is definitely elongated.
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| A very large nail.
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| An overflow channel for a pond or a terrace channel.
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| see Roof Spinner.
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| A spring-loaded metallic spiral that provides the counterweight for a doublehung window.
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| A concrete column with a continuous spiral of wire around the longitudinal steel.
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| Continuously wound reinforcing in the form of a cylindrical helix.
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| Usually made of channels or angles, punched to form hooks, which are bent over the coiled spiral to maintain it to a definite pitch.
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| see Column Spiral.
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| A continuously coiled bar or wire, used for reinforcing in a concrete column.
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| Wood in which the fibers take a spiral course about the trunk of the tree instead of the normal vertical course. The spiral may extend in a right- handed or left-handed direction around the tree trunk; spiral grain is a form of cross grain.
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| A tapering cone shaped structure surmounting a church roof or tower; a steeple.
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| A device for establishing a horizontal line or plane by means of centering a bubble in a slightly arched glass tube.
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| A stain made by dissolving a dye in an alcohol.
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| A varnish made by dissolving a resin in a solvent; it dries primarily by evaporation rather than by oxidation.
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| A glaze defect of the pinhole type developed in the decorating kiln, due to evolution of minute gas bubbles from body or glaze.
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| A small precast block of concrete or plastic used to divert water at the bottom of a downspout.
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| Method of lubricating moving parts by agitating or splashing oil in the crankcase.
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| The wall of a tile drainboard or bathtub.
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