[guh-lak-tuh n, -tan] /gəˈlæk tən, -tæn/
any of the class of hexosans, as agar, that yield galactose upon hydrolysis.
[guh-lak-tik] /gəˈlæk tɪk/ adjective 1. Astronomy. 2. immense; huge; vast: a problem of galactic proportions. 3. Physiology. pertaining to or stimulating the secretion of milk. /ɡəˈlæktɪk/ adjective 1. (astronomy) of or relating to a galaxy, esp the Galaxy: the galactic plane 2. (med) of or relating to milk adj. 1839, “of the Milky Way,” from […]
adverb pertaining to galaxies Examples Does “natural selection” apply extra-galactically? immensely; to a vast degree Examples It was a galactically stupid mistake. Word Origin 1903
noun, Astronomy. 1. . noun, Astronomy. 1. a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies. noun a loose grouping of stars Usage Note astronomy galactic cluster (gə-lāk’tĭk) See open cluster. […]
- Galactic coordinate system
galactic coordinate system The coordinate system in which a celestial object’s position on the celestial sphere is described in relation to the structure of the Milky Way galaxy. ◇ An object’s galactic longitude is measured along the galactic equator, a great circle on the celestial sphere that follows the band of the Milky Way. The […]