Merriam-Webster Collegiate Dictionary - analemma

 noun  Etymology: Latin, sundial on a pedestal, from Greek analemma, lofty structure, sundial, from analambanein to take up, restore, from ana- + lambanein to take — more at latch  Date: 1832 a plot or graph of the position of the sun in the sky at a certain time of day (as noon) at one locale measured throughout the year that has the shape of a figure 8; also a scale (as on a globe or sundial) based on such a plot that shows the sun's position for each day of the year or that allows local mean time to be determined  • ~tic adjective