Chalaza (Noun)

Meaning ¹

Basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined.

Classification

Nouns denoting plants.

Examples

• The chalaza is a crucial region in the ovule where the integument and nucellus are joined, playing a significant role in the development of the plant embryo.
• In a typical ovule, the chalaza is located at the opposite end of the micropyle, forming a distinct basal part of the ovular structure.
• The chalaza serves as a site for the attachment of the ovule to the placenta, facilitating the transfer of nutrients and water.
• During ovule development, the chalaza undergoes significant changes, including the formation of a specialized tissue that supports the growth of the embryo.
• The chalaza is also involved in the regulation of water and nutrient uptake by the ovule, ensuring proper development and maturation of the seed.

Hypernyms

• Plant Structure

Meaning ²

One of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell.

Classification

Nouns denoting animals.