Nature terminology · Sky & cycles
astr/o — Star
astr/o means star. Ancient Greek source words and nature terminology examples: astronomy.
Meaning and source words
Meaning: Star
- Ancient Greek: ἄστρον (astron)
Examples and word parts
astronomy
The study of celestial objects and the universe beyond Earth's atmosphere.
Word parts: astr/o (star) + -nomy (ordering or laws)
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Related sky & cycles terms
- heli/o — Sun
heliocentric
- sol- — Sun
solar
- selen/o — Moon
selenology
- lun- — Moon
lunar
- stell- — Star
stellar
Sources and usage
From the Word Radicals nature terminology collection. Source words and word parts are learning references; modern meanings can differ from their classical sources.