Definition: The branch of medicine that focuses on the health and development of fetuses and newborns during the time just before and after birth.

Example: Perinatology is essential for monitoring high-risk pregnancies to ensure the health of both the mother and the baby.

Definition: A layer of connective tissue that surrounds a group of nerve fibers, providing support and protection.

Example: The perineurium plays a crucial role in maintaining the health of nerve fibers.

Definition: Relating to a specific time in history or a particular age.

Example: The museum has a collection of period furniture from the 18th century.

Definition: A word that can refer to a specific length of time, a punctuation mark that shows the end of a sentence, or a complete thought in writing.

Example: The teacher explained that a period is used to end a sentence.

Definition: Describing something that happens or appears at regular intervals or in repeated cycles.

Example: The periodic table organizes elements based on their atomic number and properties.

Definition: Relating to something that is published regularly, such as a magazine or journal, often at fixed intervals.

Example: The library subscribes to several periodical publications for research purposes.

Definition: A type of publication that is released regularly, such as a magazine or journal, often containing articles, stories, or research.

Example: She subscribes to several periodicals to stay updated on current events and trends.

Definition: The quality of occurring at regular intervals or the state of being repeated over time.

Example: The periodicity of the seasons affects many aspects of nature.

Definition: Related to the tissues and structures that support and surround the teeth.

Example: The dentist specializes in periodontal treatments to help patients maintain healthy gums.

Definition: In a way that relates to the structures surrounding the teeth, particularly the gums and bone.

Example: The dentist explained the procedure periodontally to ensure the patient understood the importance of gum health.

Definition: The area of dentistry that focuses on the prevention, diagnosis, and treatment of diseases affecting the gums and supporting structures of the teeth.

Example: She decided to specialize in periodontics to help patients with gum disease.

Definition: A type of disease that causes inflammation in the tissues that support and surround the teeth.

Example: The dentist diagnosed her with periodontitis after noticing the inflammation in her gums.