A meniscus.
The upper surface of the liquid in a graduated cylinder is called the meniscus. It appears curved due to surface tension, and the measurement should be read at the bottom of the meniscus for an accurate volume reading.
The top level of groundwater in an aquifer is called the water table.
This is known as the phreatic surface or water table.
The upper face of a piston assembly is called the crown or piston crown. It is the top surface of the piston that comes into contact with the combustion gases during the engine's operation.
A ceiling is the upper horizontal surface of a room.
The upper surface of water is called the water's surface or water level. It is the boundary where the water meets the air above it.
A meniscus.
The upper surface of groundwater is called the unsaturated zone. The unsaturated upper surface contains water, as well as spaces of air, particle grains and rocks.
The inside top surface of a room is typically referred to as the ceiling. It is the horizontal surface that covers the upper boundary of the room. Ceilings can be finished in various ways, such as with paint, tiles, or plaster.
The upper surface of the foot between the toes and ankles is known in medical terminology as the dorsum of the foot, or the dorsal surface of the foot.
The upper surface of the starfish is called the aboral. The lower surface is called the oral.
the pedicellaria
aboral or dorsal
A meniscus.
The lower surface is the oral side. The upper surface is referred to as the aboral side.
The upper surface of the liquid in a graduated cylinder is called the meniscus. It appears curved due to surface tension, and the measurement should be read at the bottom of the meniscus for an accurate volume reading.