Definition: Something that was already in place or present before a certain time or event.

Example: The preexisting conditions made it difficult for the doctors to find a suitable treatment.

Definition: To exist before a certain time or event.

Example: The preexisting conditions made it difficult for the doctors to treat the patient effectively.

Definition: Relating to the front part of the brain, specifically the area located at the front of the frontal lobe.

Example: The prefrontal cortex is important for decision-making and social behavior.

Definition: A part of the brain located at the front of the frontal lobe, involved in complex behaviors such as decision making, problem solving, and controlling social behavior.

Example: The prefrontal cortex plays a crucial role in planning and decision-making.

Definition: Relating to the nerve fibers that connect to a ganglion, particularly in the autonomic nervous system.

Example: The preganglionic fibers are essential for transmitting signals from the central nervous system to the ganglia.

Definition: Relating to the stage of psychological development that occurs before the genital phase, often associated with early childhood experiences.

Example: The therapist focused on the pregenital aspects of the patient's development to understand their current behavior.

Definition: The state of carrying a developing baby inside a woman's body.

Example: Her second pregnancy was easy.

Definition: Carrying a developing baby inside the body.

Example: She is pregnant and expecting her first child.

Definition: In a way that suggests pregnancy or is full of meaning; often used to indicate a significant or loaded implication.

Example: She looked at him pregnantly, hinting at the news she was about to share.

Definition: A substance in the body that helps produce various hormones, including progesterone and other steroid hormones.

Example: Pregnenolone is often referred to as the mother hormone because it is a precursor to many other hormones.

Definition: The early signs or symptoms that occur before a headache starts, which may include feelings of tiredness, cravings, mood changes, and physical discomfort.

Example: She often experiences a preheadache phase where she feels unusually tired and thirsty before the pain begins.

Definition: Relating to the stage before an embryo attaches to the uterus.

Example: The preimplantation stage is crucial for the success of in vitro fertilization.