Fruits of the first three years of a tree is called Arla. Such fruits are forbidden to be eaten or benefited from.
The body of an Issur [as opposed to its taste].
A vessel that was used with hot Keli Rishon within the past 24 hours
A whole item such as a whole fly versus half a fly.
Chaticha Hareuya Lihiskabed. A dignified piece of Issur which is fit to be served to guests.
Forbidden fats of an animal.
The reawakening of an Issur when another Issur of the same species falls into the mixture.
Any item which is sold by individual count, as opposed to weight or volume.
Davar Sheyeish Lo Matirm:
An Issur food which will eventually become Kosher with time.
Iruiy Keli Rishon:
Pouring from a Keli Rishon onto a food.
Issur Machmas Atzmo:
A food which is intrinsically forbidden in contrast to being forbidden due to absorbing Issur.
An Issur which is never nullified even in 1000x, such as Chameitz on Pesach.
Lean meat [low fat].
An established Issur. Example: There is a known Treif meat store in ones town. All the meat stores in that town now have the status of Kavua and it is thus viewed as 50/50.
A solid which remained 24 hours within a liquid is called Kavush. This means it is considered cooked within the liquid even if the liquid was cold.
Kdei Achilas Pras:
The amount of time it takes to eat a half of loaf of bread. The amount ranges between 4-12 minutes as is disputed amongst Poskim.
The utter of an animal.
Is approximately 27 grams. All forbidden foods in the Torah are only forbidden with a penalty of lashes if one eats a Kezayis worth of them within Kdei Achilas Pras.
A professional cook. Meaning a person which is a cook for his profession.
A cold liquidly Treif substance becomes mixed with a cold Liquidly Kosher substance.
Lo Noda Beintayim:
In a scenario that two prohibitions fell into a kosher food, and one only realized that the 1st prohibition fell into the food after discovering the second prohibition this is called “Lo Noda Beintayim” which means that there was no knowledge between the two droppings.
Mesiach Lefi Tumo:
A gentile which states a casual motiveless statement. For example: If a gentile tasted a pot of food of which he saw that milk fell into and stated that it had no milk taste then this is viewed as casual statement.
A mixture of two foods which are of the same species and one of these foods is Kosher while the other is not. For example Chalav Yisrael milk which is mixed with Chalav Akum milk is Min Bemino. Min Bemino mixture Biblically require majority, while Rabbinically require 60x.
Min Beino Mino:
A mixture of two foods which are from two different species of which one is Kosher and one is not. For example cow meat and pork meat which mixed together is Min Beino Mino. Min Beino Mino mixtures Biblically require 60x
Nosein Taam Lepegam:
An Issur which gives a spoiled taste to Heter.
This means that the taste of a food is viewed like the food itself. Thus if a Kosher food contains the taste of a non-Kosher food it is considered as the non-Kosher food is within the Kosher food and hence the Kosher food is forbidden from being eaten.
Foods which are required to be tithed and have not yet been tithed is called Tevel. Such food is forbidden to be eaten.
The portion from of produce which is removed and given to the Kohanim is called Teruma. Terumah may only be eaten by Kohanim of verified lineage.
A dry Treif food became mixed with dry Kosher foods, and it is not possible to verify which piece is the Treif piece.
Yayin Nesech: Wine which has been poured by an idol worshiper.