This is the ideal dictionary for AS and A2 students. Unlike other dictionaries, the terms here are all directly relevant to AS/A-level biology. All the entries are clearly and concisely defined with diagrams and further explanation where appropriate. In many cases, entries are cross-referenced to related terms and concepts and include the guidance of the author, experienced examiner Alan Clamp, on how the term should be used correctly. The Essential Word Dictionary is the perfect reference companion, whether students are new to the subject, part way through their course or revising for their exams.