A vial is a small, glass container. It's usually used to hold liquids or medications.
- The doctor was going to give the patient a series of vials.
- The vials of paint were spilled all over the floor.
A vial is a small, glass container. It's usually used to hold liquids or medications.
To unleash is to let go of something. When you unleash a dog, you are letting it go free.
An airlock is a space inside a spacecraft or station that is used to protect the crew from the vacuum of space. It's also used to allow the crew to exchange air and other necessary supplies.
To destruct something is to break it or to damage it. When the government destroyed the city, they were breaking the buildings and causing a lot of damage.
When a school or other place is locked down, it means that the doors are closed and no one is allowed in or out. This is usually done to protect the people inside from danger.
A mathematician is someone who is good at solving equations and problems in mathematics. They are usually very smart and analytical, and they can usually think on their feet.
notoriously is an adverb that means very often. Some people use notoriously to describe famous people or things that have a lot of bad news associated with them.
A checkerboard is a board that is divided into squares. It's used to play a game called checkers.