[noh-mon] 
| 1. | the raised part of a sundial that casts the shadow; a style. |
| 2. | an early astronomical instrument consisting of a vertical shaft, column, or the like, for determining the altitude of the sun or the latitude of a position by measuring the length of its shadow cast at noon. |
| 3. | Geometry. (formerly) the part of a parallelogram that remains after a similar parallelogram has been taken away from one of its corners. |
mōn lit., interpreter, discerner
| gno·mon (nō'mŏn', -mən) n.
[Latin gnōmōn, from Greek, interpreter, pointer of a sundial, from gignōskein, to know; see gnō- in Indo-European roots.] gno·mon'ic, gno·mon'i·cal adj. |