descend : Idioms & Phrases
descending aorta
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noun the descending part of the aorta that branches into the thoracic and abdominal aortae
WordNet
descending colon
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noun the part of the large intestine that descends from the transverse colon to the sigmoid colon
WordNet
descending node
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noun the point at which an orbit crosses the ecliptic plane going south
WordNet
Reduction descending
(Arith.) , the operation of changing numbers of a higher into others of a lower denomination, as dollars to cents.