IPA: /əˈdrɛnəˌliːn/
KK: /əˈdrɛnəˌlin/
A substance produced by the body that helps to prepare for stressful situations by increasing heart rate, blood pressure, and energy levels.
When she heard the loud noise, her body released adrenaline, making her heart race.
Adrenaline → It is formed from "ad-" (meaning to or toward) and "renal" (from Latin "renalis", meaning related to the kidneys). The word "adrenaline" refers to a hormone produced by the adrenal glands, which are located near the kidneys, thus relating to the body's response to stress or excitement.
Think of 'toward' ('ad-') the 'kidneys' ('renal') — this helps you remember that adrenaline is a hormone related to the kidneys, especially in times of stress.