pyla
noun
py·la
| \ ˈpīlə\
plural pylas\ -ləz \
or pylae\ -(ˌ)lē \
Definition of pyla
: the opening from the third ventricle into the aqueduct of Sylvius in higher vertebrates including man
also
: a corresponding opening on either side from the cavity of the optic lobe in some lower vertebrates
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