Definition

The outer layer that forms the wall of a spore or pollen grain.

Example

The exine protects the pollen grain during its development.

Conversation

Have you ever studied the structure of pollen grains?

Not really, but I know they have an outer layer called the exine.

Yeah, the exine protects the pollen and helps it survive in different conditions.

That’s interesting! I didn't realize how important it was for their durability.

Synonyms & Antonyms

Root Explanation

**Exine** → The word 'exine' originates from the Latin 'ex' (meaning out of) and 'ina' (a suffix used in scientific terminology). The term refers to the outer layer of a spore or pollen grain, thus meaning the outer part that comes from within.

Memory Tip

Think of 'ex' meaning 'out of' to remember that 'exine' refers to the outer layer that comes from within a spore or pollen.

Visually Confused Words