semireclined en · ADJ
Etymology
From semi- + reclined.
Meanings
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(not-comparable) Somewhat reclined.
Women who lay down — lying flat, in a semireclined position or on their sides — were no more likely than those who sat upright or stood to have unexpected needs like a Caesarean section.
2009 April 21, Nicholas Bakalar, “Having a Baby: Activity May Decrease Length of Labor”, in New York Times: