curdle
🇺🇸
/ˈkɜːrdl/
🇬🇧
/ˈkɜːdl/
To change from a liquid to a thick or lumpy substance, like milk turning into curds.
The milk started to curdle when it got too hot.
To cause a strong feeling of fear or shock.
The sudden scream in the night made my blood curdle.