The Penguin Dictionary of Biology Eleventh Edition

Worried about your maternal effect or biological clock? Need to know a rhizoid from a rhizome? Think yours"re going to fail your zoology or botany exam? The Penguin Dictionary of Biology is your saviour, defining some 6000 terms relating to this rich, complex and constantly expanding subject from amino acids, bacteria and the cell cycle to X-ray diffraction, Y chromosome and zygotes. Long established as the definitive single-volume source, this dictionary has sold over 200,000 copies and is extensively updated for its eleventh edition.

Michael Thain joined the staff of Harrow School as a biology teacher in 1969, was Head of Biology for eleven years before retiring in 2003, and now teaches at Davies, Laing and Dick Independent College, London.