egg cell
Học thuậtThân thiện
A scientist examines a large, detailed diagram of an egg cell under a bright light.
Definition
- Noun:
- The female reproductive cell; the female gamete: An egg cell is a specialized haploid cell produced by female organisms, capable of fusing with a male gamete (sperm) during fertilization to form a new organism.
Usage
- The term "egg cell" is used in biological and medical contexts to refer specifically to the female gamete in animals, including humans.
- It is a formal, scientific term. In everyday conversation, especially regarding humans, the simpler term "egg" is more common.
- It is typically used as a countable noun (e.g., an egg cell, egg cells).
Examples
- Noun:
- During ovulation, a mature egg cell is released from the ovary.
- The sperm must penetrate the outer layer of the egg cell for fertilization to occur.
- In vitro fertilization involves combining an egg cell and sperm cell outside the body.
Advanced Usage
- "Donor egg cell": An egg cell provided by one woman (the donor) for use in another woman's fertility treatment.
- The couple used a donor egg cell to conceive.
- "Egg cell donation": The process of giving one's egg cells for use in assisted reproduction.
- She considered egg cell donation to help others start a family.
Variants and Related Words
- Egg (n): The common, less formal term for an egg cell, especially in non-scientific contexts. Also refers to the reproductive body laid by female birds, reptiles, etc.
- A human egg is visible only under a microscope.
- Ovum (n): A formal synonym for egg cell, often used in scientific literature. The plural is .
- The ovum contains half the genetic material needed for an embryo.
- Oocyte (n): A cell in an early stage of egg cell development; an immature egg cell.
- The primary oocyte will undergo meiosis to become a mature egg cell.
Synonyms
- Female gamete: The precise biological term for a reproductive cell.
- Ovum: A direct synonym used in technical contexts.
Related Phrases
- Fertilized egg cell: An egg cell that has successfully fused with a sperm cell, forming a zygote.
- The fertilized egg cell began to divide.
- Egg cell quality: A term used in fertility medicine to describe the health and viability of egg cells.
- The doctor discussed how age can affect egg cell quality.
A scientist examines a large, detailed diagram of an egg cell under a bright light.
Noun
- the female reproductive cell; the female gamete