hollow block
nounEtymology
See hollow + block, due to the hollow centers or cores that may be built into the production of these blocks to reduce weight.
Definitions
A lightweight building block made from cinders and concrete.
The neighborhood
Vish — recursive loop
No curated loop yet for hollow block. Loops are being traced one word at a time while the ingestion pipeline matures.
sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA