Intermediate (B1)
IPA: /ˌbaɪəˈlɒdʒɪkəl/
KK: /baɪəˈlɒdʒɪkəl/
Definition
Related to the study of living things and their processes, including growth, reproduction, and health.
Example
The biological effects of the drug were studied in detail.
Conversation

Did you hear about the new biological research center opening downtown?

Yeah, I read something about it; it sounds really interesting!

I wonder what kinds of biological studies they will focus on.

Probably a mix of environmental and health-related projects.
Synonyms & Antonyms
Antonyms
artificial
nonliving
unnatural
Definition
A substance made from living organisms or their products, used in medicine for diagnosis, prevention, or treatment.
Example
The doctor prescribed a biological to help treat the patient's condition.
Conversation

Have you heard about the new biological treatments available for allergies?

Yeah, I read that they can be more effective than regular meds.

I think it's amazing how they use biological methods to help people.
Root Explanation
Biological → It is formed from "bio-" (from Greek "bios", meaning life) and "-logical" (from Greek "logia", meaning study or science). The word "biological" refers to the study or science of life.
Memory Tip
Think of 'bio-' meaning life, and '-logical' relating to study — so biological is all about the study of life.
Visually Confused Words
abiological
unbiological
ological
nonbiological
bioecological
bibliological
abiologically
virological