The cactus was covered in aculeiform spines for protection.
aculeiform structure
Frequency:
60
%
The insect had an aculeiform structure that allowed it to pierce through tough surfaces.
aculeiform shape
Frequency:
50
%
The aculeiform shape of the needle made it perfect for sewing.
Idiomatic Expressions for aculeiform
Phrase: aculeiform wit
Meaning: refers to a sharp or pointed sense of humor
Usage: She was known for her aculeiform wit, always quick with a clever comeback.