Please remember that subject-specific reference sources provide background information on topics. They were written by experts in field and use the terminology or language of that discipline. They are a great place to begin for a quick introduction to topic.
These resources may include:
There are many other reference materials that may be helpful and save you time. Please just ask for suggestions.
General biology and life sciences dictionaries and an encyclopedic set are shelved in the reference collection at QH302.5.
Similar types of medical resources are shelved at R121 and R124.