1. Plural of mesophyll; the photosynthetic tissue in plant leaves located between the upper and lower epidermis.
Usage: botanical term; typically used in plural form when referring to multiple instances or in technical contexts

Examples

• The mesophylls of the leaf contain chloroplasts that perform photosynthesis.
• Different plant species have mesophylls with varying cell structures adapted to their environments.
• The palisade and spongy mesophylls work together to maximize light absorption.
• Botanists examined the mesophylls under a microscope to study the plant's adaptation to drought.
• The mesophylls in shade-adapted plants differ significantly from those in sun-adapted plants.