See also:

• PRISM (Gr. rrpivµa, properly a thing sawn, Irpii"ety, to saw)

PRISM (Gr. rrpivµa, properly a thing sawn, Irpii"ety, to saw)  , in See also:

• GEOMETRY

geometry a solid enclosed by See also:

• PLANE

plane surfaces, two of which, termed the ends, are parallel, equal, similar and similarly situated polygons, and the faces connecting the ends are parallelograms, equal in number to the sides of the See also:

• POLYGON (Gr. rroXus, many, and ywvia, an angle)

polygon . If the faces be perpendicular to the ends the See also:

• PRISM (Gr. rrpivµa, properly a thing sawn, Irpii"ety, to saw)

prism is a " right prism," and the faces are rectangles; otherwise the prism is " oblique." The See also:

• AXIS (Lat. for " axle ")

axis is the See also:

• LINE

line joining the centres of the ends . It may be generated by moving a plane (corresponding to an end or See also:

• BASE

base) parallel to itself . A prismoid differs from a prism in having for its ends two dissimilar parallel figures . For illustrations see See also:

• CRYSTALLOGRAPHY
• CRYSTALLOGRAPHY (from the Gr. Kpbo TaXXO , ice, and -ypachew, to write)

CRYSTALLOGRAPHY, and for the See also:

• MENSURATION (Lat. mensura, a measure)

mensuration see that See also:

• ARTICLE (from Lat. articulus, a joint)

article . In See also:

• OPTICS

optics the word denotes a triangular prism, i.e. one having a triangle for base, used to decompose See also:

• WHITE
• WHITE, ANDREW DICKSON (1832– )
• WHITE, GILBERT (1720–1793)
• WHITE, HENRY KIRKE (1785-1806)
• WHITE, HUGH LAWSON (1773-1840)
• WHITE, JOSEPH BLANCO (1775-1841)
• WHITE, RICHARD GRANT (1822-1885)
• WHITE, ROBERT (1645-1704)
• WHITE, SIR GEORGE STUART (1835– )
• WHITE, SIR THOMAS (1492-1567)
• WHITE, SIR WILLIAM ARTHUR (1824--1891)
• WHITE, SIR WILLIAM HENRY (1845– )
• WHITE, THOMAS (1628-1698)
• WHITE, THOMAS (c. 1550-1624)

white See also:

• LIGHT

light .