What exactly is giant covalent molecule?

What exactly is the definition of "giant covalent molecule"? All sources online don't give a definition but instead, allude to properties of examples of giant covalent molecules (such as diamond and graphite). What does the "giant" mean?

To this end, is table sugar (sucrose, $$\ce{C12H22O11}$$) a giant covalent molecule? I reckon that since it is a covalent compound with a crystalline structure, it should be a giant covalent molecule. Is my reasoning correct?

• No. It is a small molecule. Ten times that big is still small. Pretty much all compounds have crystalline structure. This is irrelevant. Oct 19, 2021 at 8:08
• Some expressions do not have explicit and unique definition, like a "giant person". Stay with meanings of "giant", "covalent" and "molecule". BTW, it is not fructose, but sucrose. Is sucrose molecule at least as big as molecules of polysacharides, proteins and DNA to be a giant candidate ? Oct 19, 2021 at 8:08
• @Poutnik My apologies, I meant sucrose; edited that part of the question. So the whole idea of "giant covalent molecule" is pretty much arbitrary?
– Tham
Oct 19, 2021 at 8:20
• @IvanNeretin I was under the (probably erroneous) assumption that since table salt is a crystalline lattice structure and is considered giant, table sugar would also fall into this camp since it is a crystal. Does it mean that being a crystalline lattice structure is not a sufficient condition in determining the size of the compound?
– Tham
Oct 19, 2021 at 8:25
• @Poutnik Oh ok, I get it now. Thank you for explaining! I'm quite new to chemistry so pardon my confusion over simple questions like this.
– Tham
Oct 19, 2021 at 8:32