Reference for Niddah 84:47

אם כן מה תלמוד לומר {ויקרא יא } והאוכל

is excluded since it conveys uncleanness even before one had eaten of it. But why should not this<span class="x" onmousemove="('comment',' That the nebelah of a beast conveys uncleanness by way of the oesophagus. ');">⁴⁴</span>

Jastrow

Jastrow