Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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No pronunciation record was provided for this word.
noun
A kind of orrery that combined mechanical movement with a method of back projection.
Definition source: English Wiktionary via Wiktextract
Usage: historical
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Neologism based on Ancient Greek εἶδος (eîdos, “that which is seen”) + οὐρανός (ouranós, “the firmament”) + -ιον (-ion, parasynthetic compound suffix).
