compaction /com·pac·tion/ (kom-pak´shun)
compaction (kompak´sh
n),
1. a complication of labor in twin births in which there is simultaneous full engagement of the leading fetal poles of both twins, so that the lesser pelvis is filled and further descent is prevented.
2. in embryology, the process during which blastomeres change their shape and align themselves tightly against each other to form the compact morula.
compaction (kompak´sh
n),n the act of compacting or the state of being compact.
compaction
packing together as in twin births when both fetuses engage the pelvis at the same time, in prolonged constipation in dogs, and in compaction of endochondral bone as a part of normal bone modeling.
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