The empty space inside a tube is called the lumen. It is the hollow part through which fluid or air can flow.
He ate applesauce out of a toothpaste like tube.
The tube that leads to the bladder is called the ureter.
It is called "Space" ... a descriptive title suggestive of the vast volumes of nothingness or 'space' so ubiquitously and homogeneously distributed there.
People who travel in space are called astronauts.
A person who flies in space is called an astronaut.
Spacesuits include a bag with a tube called a catheter.
The space within a tube-like structure is called a lumen. Parts of the body with lumens include veins and arteries.
A telescope
The inside diameter of a tube is called the "inner diameter" (ID). It refers to the measurement of the tube's internal space, which is crucial for determining the flow capacity and fitting compatibility with other components. In contrast, the outer diameter (OD) measures the tube's external width.
The inflammation of the eustachian tube is called eustachian tube dysfunction (ETD).
The fluid taken out by a chest tube is typically called pleural effusion when it is fluid that has accumulated in the pleural space. It can also be blood (hemothorax) or pus (empyema), depending on the underlying condition being treated. The chest tube is inserted to drain these fluids, alleviate pressure on the lungs, and improve breathing.
another name for test tube is culture tube or sample tube
pureed goo in a tube resembling a toothpaste tube.
The 'tube'
The tunnel is called a lava tube or magma tube.It's called a conduit.conduita tube or vent tube
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the largest test tube is beaker