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To explain or understand something.
To interpret
Different types of light, each with its own size or length.
Wavelengths
The part of the eye that senses light.
Retina
Seeing colors with three types of color receptors.
Trichromatic
Special cells in the retina that detect light.
Receptors
Seeing colors with four types of color receptors.
Tetrachromatic
Not being able to see all colors, or seeing some colors differently.
Color blind
A variation of a color, like light blue or dark blue.
Shade of color
A biological preparation that provides immunity to a particular infectious disease.
Vaccine
Public health conditions related hygienic practices.
Sanitation
A type of medication used to kill bacteria or slow their growth.
Antibiotic
Isolation of a sick person to prevent the spread of disease.
Quarantine
A person who takes care of animals like cows, sheep, or goats.
Herder
A group of large farm animals, usually cows, raised for meat, milk, or leather.
Cattle
Animals raised on a farm, like cows, pigs, sheep, or chickens.
Livestock
A stick with a burning end,or It can also refer to a small, battery-powered electric light that is often handheld.
Torch
