"Ud'hiyah": a name given to the animal that one slaughters as a sacrifice to Allah. It originally refers to the animal slaughtered on the Day of Nahr (Eid al-Ad'ha, 10th of Dhul-Hijjah).
"Ihsār": gathering, detention, prevention. Examples of "ihsār" include such cases when a person is prevented by illness or travel from doing something, and when a pilgrim is prevented by illness or some other cause from completing the rituals of Hajj.
The twelfth month of the Hijri calendar, after Dhul-Qa‘dah
The tenth day of the month of Dhul-Hijjah. It is the day of Eid al-Adha.
Giving freedom of choice to the one qualifed for religious obligations in ceratin matters
The hair that grows on the skin of camels and rabbits.
Placing a necklace or belt around the neck.
Camels, cows, and sheep.