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nouna constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel
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noun(Greek mythology) a giant Boeotian hunter who pursued the Pleiades and was eventually slain by Artemis; was then placed in the sky as a constellation
Definition that contains orion
- taurus a zodiacal constellation in the northern hemisphere near Orion; between Aries and Gemini
- pleiades (Greek mythology) 7 daughters of Atlas and half-sisters of the Hyades; placed among the stars to save them from the pursuit of Orion
- rigel the brightest star in Orion
- betelgeuse the second brightest star in Orion
- charioteer a conspicuous constellation in the northern hemisphere; between Great Bear and Orion at edge of Milky Way
- trapezium a multiple star in the constellation of Orion
- great dog a constellation to the southeast of Orion; contains Sirius
- molar pregnancy an abnormality during pregnancy; chorionic villi around the fetus degenerate and form clusters of fluid-filled sacs; usually associated with the death of the fetus
- chorionic villus one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta
- chorionic of or relating to a chorion