Ob (Noun)

The branch of medicine dealing with childbirth and care of the mother.

Nouns denoting cognitive processes and contents.

The obstetrician performed a routine checkup on the expectant mother to monitor the baby's development.
The hospital's ob department was equipped with state-of-the-art facilities to handle high-risk pregnancies.
After completing medical school, she decided to specialize in ob and pursue a career in maternal-fetal medicine.
The nurse's experience in ob made her an excellent candidate to lead the hospital's prenatal education program.
The new ob clinic offered a range of services, including prenatal care, childbirth classes, and postpartum support.

A major river of western Siberia; flows generally northward and westward to the Gulf of Ob and the Kara Sea.

Nouns denoting natural objects (not man-made).

The Ob is the world's thirteenth longest river, and its drainage basin covers a vast territory of western Siberia.
In terms of its importance as a natural resource, the Ob ranks alongside other great Siberian rivers such as the Yenisei and the Irtysh.
As it flows generally northward and westward, the Ob cuts through several large areas of rugged terrain in western Siberia.
Many villages and cities, including Surgut and Novosibirsk, rely heavily on the Ob as a source of freshwater and as a major transportation route.
Due to its relatively pristine waters and large population of aquatic wildlife, the Ob is an increasingly popular destination for nature enthusiasts and tourists.