the first fecal excretion of a newborn child, composed chiefly of bile, mucus, and epithelial cells.
fecal mass released at pupation by the larvae of some insects.
the milky sap of the unripe seed pods of the opium poppy; crude opium.
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How to use meconium in a sentence
meconium usually has very little odor and generally passes within the first few days out of the womb.
This can happen if the baby is under stress and passes the meconium while still in the uterus.
A little of the substance called meconium even collects in the intestines, the same as is found in at birth.
The meconium is more abundant, and lower down in the intestines.
The bones are tolerably firm, and the meconium collects in the large intestines.
The meconium is black, and when the infant is effectually eased of it, the subsequent stools are of a whitish cast.Buffon's Natural History, Volume III (of 10) | Georges Louis Leclerc, Comte de Buffon
In the bowels of children at the time of their birth, there is an accumulation of what is called "the meconium."Mrs. Hale's Receipts for the Million | Sarah Josepha Hale
British Dictionary definitions for meconium
the dark green mucoid material that forms the first faeces of a newborn infant
opium or the juice from the opium poppy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012