πλευρά
pleura

Greek noun

Last edited: 2025-01-29
Primary meaning side
Literal translation rib
Variants
πλευρά pleura
Edited by
side mathematical term, geometrical term

of a geometrical shape

Κατὰ τρίγωνον δέ ἐστι Κριὸς Λέων Τοξότης, Ταῦρος Παρθένος Αἰγόκερως, Δίδυμοι Ζυγὸς Ὑδροχόος, Καρκίνος Σκορπίος Ἰχθύες, τὰ πάντα τρίγωνα ἰσόπλευρα δʹ· ὑποτείνει δὲ ἡ τοῦ τριγώνου πλευρὰ ὑπὸ ζῴδια μὲν δʹ, μοίρας δὲ ρκʹ.

‘“In trine” are Aries - Leo - Sagittarius, Taurus - Virgo - Capricorn, Gemini - Libra - Aquarius, Cancer - Scorpio - Pisces, all 4 equilateral triangles; the side of the triangle subtends 4 zodiac signs, or 120 degrees.’

— Geminus 2.7

Genre: astronomy
Date: 1st century BCE

Geminus. 1975. Géminos, Introduction aux Phénomènes, ed. G. Aujac. Paris: Les Belles Lettres. 10

Κατὰ τετράγωνον δέ ἐστι Κριὸς Καρκίνος Ζυγὸς Αἰγόκερως, Ταῦρος Λέων Σκορπίος Ὑδροχόος, Δίδυμοι Παρθένος Τοξότης Ἰχθύες, τὰ πάντα τετράγωνα γʹ· ὑποτείνει δὲ ἡ τοῦ τετραγώνου πλευρὰ ὑπὸ ζῴδια μὲν γʹ, μοίρας δὲ ϙʹ.

‘“In quartile” are Aries - Cancer - Libra - Capricorn, Taurus - Leo - Scorpio - Aquarius, Gemini - Virgo - Sagittarius - Pisces, all 3 squares; the side of the square subtends 3 zodiac signs, or 90 degrees.’

— Geminus 2.16

Genre: astronomy
Date: 1st century BCE

Geminus. 1975. Géminos, Introduction aux Phénomènes, ed. G. Aujac. Paris: Les Belles Lettres.

Cite this entry
APA (7th)
Peeters, T. (2025). πλευρά (Lemma #2773). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/2773/
Chicago (Author-Date)
Peeters, T. (2025). πλευρά (Lemma #2773). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/2773/
MLA (9th)
Peeters, T. (2025). πλευρά (Lemma #2773). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/2773/
Harvard
Peeters, T. (2025) πλευρά (Lemma #2773), The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. Available at: https://zodiacglossary.github.io/lemma/2773/ (Accessed: February 2, 2026).
BibTeX 
@misc{zodiac2773,
	note = {[Online; accessed 2026-02-02]},
	author = {Peeters, Thomas},
	year = {2025},
	title = {πλευρά ({Lemma} #2773)},
	url = {https://zodiacglossary.github.io/lemma/2773/},
	howpublished = {https://zodiacglossary.github.io/lemma/2773/},
}