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1) [line 4] CHAZAKAH B'ALMA HU - it is merely a presumption [that this man is the Kohen's father]

2) [line 7] D'LAV AZIL ZAR'AH BASRAH - since they do not follow her [paternal lineage. Familial lineage follows the male line of the family and a woman's sons are not considered a part of her paternal family.]

3) [line 2] REVI'IS DAM
(a) The blood that comes out of a dead body is Metamei b'Ohel if there is a Revi'is (approximately 75, 86 or 150 cc, depending upon the differing Halachic opinions) of it is in one location.
(b) Rebbi Akiva rules that a Revi'is of blood is also Metamei if it came out of two different people, however, the Rabanan (Sanhedrin 4a) rule that the Revi'is of blood must come out of one person for it to be Metamei b'Ohel (see Insights). The Halachah follows the opinion of the Rabanan.

4) [line 6] NETZEL - the flesh of a corpse that dissolves to a putrid liquid and then coagulates (Gemara below 50a, RAMBAM Hilchos Tum'as Mes 2:1)

5) [line 6] MELO TARVAD REKEV
A large spoonful (that measures two handfuls) of rot (Rekev) from a decomposed corpse, is Metamei b'Ohel (Ohalos 2:1). Rekev is Metamei only if it is from a bare corpse that decomposed and was not mixed with anything else (Gemara below Daf 51a, Nidah 27b). (According to the Yerushalmi (Nazir 35b), a large spoonful is the total amount of decomposed matter that is produced from any one corpse that decomposes.)

6a) [line 6] SHIDRAH - the spinal column
b) [line 6] GULGOLES - the skull

c) AL HA'SHIDRAH V'AL HA'GULGOLES - for the spinal column and the skull (a) The bones of a Mes are only Metamei through Ohel under one of three conditions: 1. They constitute a quarter of a Kav (Rova Ha'kav); 2. They are the majority of the human body (whether they are the majority of the *build* (Rov Binyano) of the body or the majority of the *number* (Rov Minyano) of 248 bones; 3. The bone is a complete skull or a complete spinal column. In order to be Metamei through Maga and Masa, it is enough for the bone to be the size of a Se'orah (a grain of barley).
(b) Rov Binyano refers to the majority of the bones that enable a person to stand erect, e.g. two calf bones and one thigh bone. All of his "build," i.e. the bones that enable him to stand erect are two calf bones, two thigh bones, the ribs and the spinal column (Gemara below 51b, RAMBAM Hilchos Tum'as Mes 2:8).

7) [line 7] SHE'YESH ALAV BASAR KARA'UY - that has upon it enough flesh to heal (when it is attached to a living body)

8) [line 7] CHATZI KAV / CHATZI LOG - half a Kav / half a Log
1 Kav = 4 Lugin
1 Log = 6 Beitzim
1 Beitzah = approximately 0.05, 0.0576 or .1 liters, depending upon the differing Halachic opinions. Therefore:

1/2 Log = 0.15, 0.1728 or 0.3 liters
1/2 Kav = 0.9, 1.0368 or 1.8 liters

11a) [line 8] AHILAN - coming into the same Ohel (tent, enclosure) as them (being in the same room (lit. tent). An Ohel is defined as a covered space that is at least one Tefach in length, width and height)

b) [line 4] BI'AH (TUM'AS OHEL)
(a) A k'Zayis of the flesh of a *Mes* (corpse) is an "Avi Avos ha'Tumah" and is Metamei through Maga (contact), Masa (carrying), and Ohel (being in the same room (lit. tent). An Ohel is defined as a covered space that is at least one Tefach in length, width and height). If a person becomes Tamei by touching a *Mes*, he must wait seven days to go to the Mikvah. Furthermore, on the third and seventh days he must have Mei Chatas (water mixed with ashes of the Parah Adumah) sprinkled on him.
(b) In an Ohel ha'Mes, the house or room becomes Tamei even if the Mes is passing through it and does not stop moving. A person who enters an Ohel ha'Mes becomes Tamei even if only a bit of his body enters, even when entering backwards. A Mechitzah (partition) in an Ohel ha'Mes only prevents the spread of Tum'ah if it reaches the ceiling. (RASH to Keilim 1:4)
(c) The bones of a Mes are only Metamei through Ohel under one of three conditions: 1. They constitute a quarter of a Kav (Rova Ha'kav); 2. They are the majority of the human body (whether they are the majority of the *build* (Rov Binyano) of the body or the majority of the *number* (Rov Minyano) of 248 bones; 3. The bone is a complete skull or a complete spinal column. In order to be Metamei through Maga and Masa, it is enough for the bone to be the size of a Se'orah (a grain of barley).
(d) When an object that can be Metamei b'Ohel is located in an Ohel, the Ohel makes everything in it Tamei and protects anything that is above it from becoming Tamei. That is, an Ohel is *Mevi* Tum'ah (spreads Tum'ah inside of it) and is *Chotzetz* from Tum'ah (intervenes between the Tum'ah and the space above the Ohel, preventing Tum'ah from spreading above it).
(e) However, not all objects that cover Tum'ah are Mevi and Chotzetz. There are objects that are Mevi and not Chotzetz and other objects that are Chotzetz and not Mevi and even others that are neither Mevi nor Chotzetz (Ohalos 8:5). An object that is flying through the air, such as a bird or a Talis that is carried or caught up by the wind, are not Ohalim and are not Mevi or Chotzetz, even if they are one Tefach wide.

12) [line 12] KANTERANIN - quarrelsome people
13) [line 12] L'KAPCHENI B'HALACHOS - they come to overwhelm me with citations of tradition (of which they will prove me to be ignorant)

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