Resembling or having the characteristics of a star; star-shaped or radiating from a central point.
From Greek aster 'star' plus -oid 'resembling.' The suffix -oid is widespread in English scientific terminology for describing things that look like something without being that thing.
The word asterioid describes star-shaped things in biology—like starfish (sea stars), which have that characteristic radiating pattern. It's wild that sea stars aren't actually fish at all, despite their name!
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