How to spell CALKOID correctly?

If you mistakenly typed "calkoid", it is likely that you meant "alkaloid". Alkaloids are a group of naturally occurring chemical compounds found in plants and other organisms. These substances have various effects on the body and can be found in many medicinal and recreational drugs.

• Alkaid Alkaid is the third brightest star in the Big Dipper, also known as the Great Bear.
• Calked The handyman calked the gaps around the windows to prevent drafts.
• Colloid Ice cream is a colloid because it contains small particles of fat dispersed in a liquid mixture.

Attenttion

• attention
• attentions
• attenuation
• inattention