gnomon angolul

gnomon▼(object used to tell time by the shadow it casts when the sun shines on it)
noun
[UK: ˈnəʊ.mɒn] [US: ˈnoʊ.mɑːn]

gnomonics▼(The science and art of sundials)
noun
[UK: nəmˈɒnɪks] [US: nəmˈɑːnɪks]