"hollow space" is a correct and usable phrase in written English.
It can be used to describe a space or area that is empty or has little substance. Example: The abandoned warehouse was filled with shadows and echoes, its once bustling rooms now nothing but hollow spaces.
Abdominal cavity, largest hollow space of the body.
That wasn't just all hollow space behind there; it was full of components.
The genial family entertainment "We Bought a Zoo" is also built around the hollow space left by a missing parent.
For his invention, Mr. Ibe used extremely tiny rubber balls to fill the hollow space to hold the external structure.
They were amplified in the largely hollow space of the room, as if in the barrel of a drum.
"We have a special technology that puffs up the koala-shaped cookies so there is hollow space inside where soft chocolate can be injected later," Mr. Nakamura said.
Central Javanese stone architecture did not use structural pillars, nor did its major stone monuments conceptualize hollow space in the way Khmer architecture did.
Often a hollow space is desired within the casting; in this case a core of fine sand is placed in one of the mold halves.
By Frances Warfield The New Yorker, September 12 , 1931 P. 29Woman who has plaster cast which reaches from her right toe to her knee has found that there is a hollow space inside.
In a typical high-rise office floor, three or four inches of concrete covers a corrugated-steel deck, whose weight is supported by I-beams or, in the case of the Twin Towers, by long "trusses" — lightweight strips of steel that are braced by crosshatched webs of square or cylindrical bars, creating a hollow space below each floor surface.
