Definition

1. Noun:
   • A waxy, water-repellent substance: In biochemistry, "cutin" refers to a waxy, transparent, and waterproof polymer that is a primary component of the plant cuticle, the outer protective layer of leaves, stems, and other aerial plant parts. It consists of long-chain fatty acids and their esters, which are highly polymerized.

Examples of Usage

• Noun:
  • The plant's leaves are protected by a layer of cutin that minimizes water loss.
  • Scientists study the composition of cutin to understand plant adaptation to dry environments.

Advanced Usage

• "Cutin biosynthesis": The biochemical process by which plants produce and deposit cutin.
  • Research into cutin biosynthesis could lead to the development of more drought-resistant crops.

Variants and Related Words

• Cuticle (n): The non-cellular, protective film covering the outer cell layer of a plant, largely composed of cutin and waxes.
  • The cuticle acts as a barrier against pathogens and dehydration.
• Suberin (n): A complex, waxy polymer similar to cutin but found in cork tissues and root cell walls.
  • Suberin, like cutin, is a lipophilic polymer that provides a protective barrier.

Synonyms

• Lipophilic polymer: A substance that combines with or dissolves in lipids or fats.
• Wax ester polymer: A more specific chemical description highlighting its composition.

Notes on Meaning

• Specificity: "Cutin" is a highly specialized scientific term used almost exclusively in botany, plant physiology, and biochemistry. It is not used in everyday conversation.
• Material vs. Layer: "Cutin" refers specifically to the chemical substance itself, not the entire protective layer (which is the cuticle). The cuticle is composed of cutin embedded in waxes.

Noun

1. (biochemistry) a waxy transparent material that occurs in the cuticle of plants and consists of highly polymerized esters of fatty acids