a barrier that is built across a river in order to stop the water from flowing, used especially to make a reservoir (= a lake for storing water) or to produce electricity
سد, بند
2
an artificial lake where rain or spring water is collected and stored
سد, بند, آببند
The dam was quite full after the winter.
3
the mother of some animals, especially horses
مادر (بویژه در حیواناتی چون اسب), مادر اسب, مادیان مادر
compare sire
4
a small rubber sheet used by dentists to keep a tooth separate from the other teeth
سد لاستیکی, سد دندانپزشکی
5
a small rubber sheet used to protect the mouth during sex
پرده محافظ دهانی, محافظ دهانی
verb
1
to build a dam across a river, especially in order to make an artificial lake for use as a water supply, etc.