Reference for Chullin 249:33

אי אמרת בשלמא חד שמא הוא משו"ה מצטרף

For R'Eleazar stated: If a man sawed through a marrow-bone lengthwise it is still unclean,<span class="x" onmousemove="('comment',' Although it does not now contain the requisite quantity of marrow, since in a portion of the bone there is a continuous strip of marrow, it will be invested in time with marrow and flesh, and it therefore conveys uncleanness as the corpse itself.');">¹⁷</span>

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow