1. shaped like a needle; slender and pointed
Usage: botanical term
2. having a sharp, sour taste
Usage: archaic or rare

Examples

• The acerose leaves of the pine tree are adapted to reduce water loss.
• Spruce needles are characteristically acerose in shape.
• The plant's acerose foliage gives it a distinctive appearance.
• Botanists use the term acerose to describe needle-like leaf structures.
• Many conifers display acerose leaves that remain green year-round.