Как по Английски будет перстневидный

adjective

Having the form of a circle.

Примеры использования:

The building features a circular atrium

noun

A letter or advertisement that is distributed to a large number of people.

Примеры использования:

I received a circular from a building society

adjective

Ring-shaped.

Примеры использования:

Complex craters have uplifted central structures surrounded by an annular trough and a fractured rim

noun

The ring-shaped cartilage of the larynx.

Примеры использования:

Cricothyrotomy - a medical procedure involving an incision being made between the cricoid and thyro…

adjective

Shaped like a ring

Примеры использования:

In a young thin person the thyroid may be visible just below the cricoid cartilage.