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| Herringbone
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Pattern where rectangular shaped pieces are laid at alternating right angles to each other, forming a series of V-shapes, referred to as chevrons. |
| Herringbone gears
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Cylinder shaped gears with teeth laid out in a herringbone pattern. |
| Herringbone work
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Stone, brick or tile work in which the components are laid diagonally instead of horizontally, forming a distinctive zigzag pattern along a wall face. |
| Hertz (hz)
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The international unit of frequency equal to one cycle per second. |
| Heterogeneous
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Mixed assortment of housing styles in a residential development. Alternately, mixed zoning uses in an urban development plan. |
| Heterojunction
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A region of electrical contact between two different materials. |
| Hewn
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Wood that has been chopped, shaped, or cut with an ax or knife. |
| Hexagon
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A plane figure with six angles and six sides. |
| Hexagonal shingle
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A 36-inch long by 11-1Ú2 inch wide, interlocking, strip asphalt shingle with two half-hexagonal tabs. |
| Hexahedron
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A solid figure with six plane surfaces. |
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