Porthole

Rows of portholes can be seen on the hull of HMS Cornwall, a British heavy cruiser from the 1920s

Cosmonaut Sergei Krikalev in front of a porthole in the Zvezda component of the International Space Station

A porthole, sometimes called bull's-eye window or bull's-eye, is a generally circular window used on the hull of ships to admit light and air. Though the term is of maritime origin, it is also used to describe round windows on armored vehicles, aircraft, automobiles (the Ford Thunderbird a notable example) and even spacecraft.

单词	Port hole
释义	Port hole 英语百科 Porthole A porthole, sometimes called bull's-eye window or bull's-eye, is a generally circular window used on the hull of ships to admit light and air. Though the term is of maritime origin, it is also used to describe round windows on armored vehicles, aircraft, automobiles (the Ford Thunderbird a notable example) and even spacecraft.
随便看	paraventure paraverbal paraverbally paraverine paravermal paravermian paravermis PARAVERT. paravertebal thorcoplasty paravertebral paravertebral abscess paravertebral anesthesia paravertebral approach paravertebral block paravertebral extraperiosteal thoracoplasty Paravertebral ganglia Paravertebral ganglion paravertebral irradiation paravertebral line paravertebrally paravertebral lymph gland paravertebral lymph node paravertebral muscle paravertebral muscles Paravertebral muscle spasm

Port hole

Porthole