The second porthole, slightly to the rear of the first, looks into the engine's guts.
Sunlight coming in through the porthole could be clearly seen.
Secret porthole staterooms allow you to have an outside stateroom at the same price that you would pay for an indoor cabin.
These include the interior rooms and several exterior rooms with a porthole overlooking the ocean.
Select one of six secret porthole staterooms early, as they sell out quickly.
Each floor seemed equally ominous: dark-blue walls and ceiling, a long, narrow hallway with a porthole at either end.
Suction draws disk material, which has the texture of crab meat, into a porthole near the probe's tip.
The oval-shaped tank surface was bare around each porthole within the rectangular area.
The porthole drilling process required laser instrumentation both to mark the port location and to drill the pilot holes.
They are patching a number of new openings left by porthole covers and equipment that have fallen off the tug.
British Dictionary definitions for porthole
porthole
/ˈpɔːtˌhəʊl/
noun
1.
a small aperture in the side of a vessel to admit light and air, usually fitted with a watertight glass or metal cover, or both Sometimes shortened to port
2.
an opening in a wall or parapet through which a gun can be fired; embrasure
Word Origin and History for porthole
n.
also port-hole, 1590s, from port (n.2) + hole (n.).