pacemaker
A pacemaker is a device that is commonly used to regulate an irregular heartbeat by sending electrical impulses to the heart to help it maintain a normal rhythm.
Personification is a literary device in which human qualities or emotions are attributed to non-human entities or objects. It is used to make abstract concepts more relatable or tangible to readers by giving them human-like attributes.
"Melatonin" is a hormone produced by the pineal gland in the brain that helps regulate sleep and wake cycles. It is also available as a dietary supplement and is sometimes used to help improve sleep quality or treat certain sleep disorders.
The trope of a character mentioning retirement only to meet a tragic end shortly thereafter is a common storytelling device in movies and TV shows. It is often used to create dramatic tension and surprise the audience.
No, "retired" is not a verb. It is an adjective used to describe someone who has stopped working in their profession. The verb form of this would be "retire."
"Shlenter" does not have a recognized meaning in English. It may be a made-up or rarely used word. More context would be needed to understand its intended meaning.
setscrew
A pacemaker
A stethoscope is a device used by doctors and physicians. They use this device to listen to your heart and lungs. A stethoscope magnifies the sounds of your heart and lungs, and enables the doctor to listen for anomalities.
The device that is used for calculation is a calculator. However, in computers, the part of the device that is used for computation would be the CPU, or the central processing unit.
In a toilet tank or water reservior to regulate filling.
Resource
Sotalol is used to regulate irregular heartbeats. Abuse of Sotalol will not get you high, but it will cause change of heartbeat, shortness of breath, chest pain, swelling, confusion, sweating, feeling light-headed, fainting, seizure, or poisoning.
To stabilize the heartbeat.
Clinically we get the heartbeat of a person by Auscultation (listening) with the use of a stethoscope which is an instrument used to listen to sounds produced by the body. Another method would be through Palpation (touching) but it's seldom used and frankly harder at times to do.
The PCV valve is a control device which sends partially burned gases that come from the engine's crankcase to the combustion chamber. The PCV is generally used to regulate the air flow.
carburetor
Thermostat is a noun and cannot be used as a verb. Verbs that might be used would be regulate, control, or govern.