Looking for a quick definition?
We’ve got loads of key subject terms in our subject glossaries. There are three ways of finding what you are looking for:
- First click on the letters of the alphabet to browse for terms.
- Select a subject from the drop-down menu above to filter the terms by Subject.
- Or lastly, type the term you are looking for into the search box.
Here are some examples of the kinds of definitions you’ll find on this page.
a genus of the Protozoa consisting of shapeless unicellular organisms that move by means...
an infectious disease of the digestive system that is characterised by diarrhoeaandbloodinthe...
reactions in which smaller simpler molecules joint form larger,complex molecules