(n.) Spontaneous generation (development of life from lifeless matter).
(adj.) 1. Able to live both on land and in water.
2. Attacking with coordinated land, sea, and air forces.
(n.) Germ-killing substance produced by or derived from a microorganism.
(n.) Story of a person's life written by that person.
(n.) Chemistry dealing with chemical compounds and processes in living plants and animals.
(adj.) Destructive to life or living things.
(adj.) Capable of being readily decomposed into harmless substances by microorganisms.
(n.) Development of life from preexisting life.
(n.) Story of a person's life written by another person.
(n.) Science dealing with the study of living organisms.
(n.) Statistical analysis of biological data.
(n.) Diagnostic examination of a piece of tissue from the living body.
(n.) Plants (flora) and animals (fauna) living in a region.
(n.) Microscopic life form; microorganism; germ.
(n.) Living together in mutually helpful association of two dissimilar organisms.
(n.) 1. Dissection of plants, animals, or other things to study their structure; analysis.
2. Structure (e.g., of a plant or animal).
Surgical removal of the appendix.
(n.) Smaller particle of an element (literally, "not cut", "indivisible").
(n.) Device for converting a liquid to a fine spray.
(n.) Cutting or division into two; division.
(n.) Surgical removal of part or all of the stomach.
(n.) Brain surgery for treatment of certain mental disorders.
(n.) Surgical removal of a breast.
(n.) Opening of a vein to diminish the blood supply.
(n.) One volume, or "cut", of a work of several volumes; scholarly book.
(n.) Surgical removal of the tonsils.
(n.) Surgical operation of cutting into the trachea (windpipe).