The description of objects viewed under magnification, esp. under a microscope. Also: an example of this. Obsolete.

= microscopy, n. rare. Now historical.

With singular agreement. A division of biology concerned with the study of systems that are at rest or in equilibrium (as opposed to being in…

A branch of biology which deals with electrical phenomena in living organisms.

With singular agreement. The application of science and technology to the utilization and improvement of living organisms and their products; = bio…

the branch of science concerned with the development and functioning of the human organism and aspects of the life of human populations such as their…

= phylogenetics, n.

The physiological, anatomical, and (in later use) genetic and molecular processes involved in the ontogenesis of an organism; the branch of…

The branch of science that deals with the biological basis of behaviour or mental phenomena. Also: the psychobiological characteristics of an…

The branch of science that deals with microorganisms. Also (chiefly with distinguishing word): the study of the microorganisms associated with a…

With singular agreement. The part of biological science concerned with the changes in a living organism during its growth and development. Cf. biost…

The scientific study of bacteria.

The science of the phenomena of decadence, esp. those characteristic of a species or other group of animals approaching extinction.

That part of biology which treats of the propagation or breeding of domestic animals and plants.

The branch of biology concerned with the structure, function, reproduction, interactions, etc., of living cells and the organelles they contain…

With singular agreement. The branch of science concerned with the application of physics to biological systems and phenomena; esp. the study of the…

With singular (or occasionally plural) agreement. The branch of science concerned with the application of mechanical principles to the movement…

Pathology; esp. the study of the biological processes associated with disease or injury; (also) the pathobiological behaviour or features of…

The branch of science that deals with the statistical analysis of numerical data relating to living organisms, esp. concerning genetic…

With singular agreement. = biometry, n. 2.

Originally: the study of philosophical questions which arise from or relate to biological discoveries and theories but lie beyond the scope of…

Biology. With singular or plural agreement. The study of the production, transformation, and use of energy in living organisms. Also: the processes…

The branch of science that deals with the effects on living organisms of radiation and radioactivity, and with the application in biology of…

The branch of medicine concerned with the application of the principles of biology, biochemistry, etc., to medical research or practice.

The branch of biology that deals with the effects of light on living organisms.

The branch of science concerned with the study of viruses.

The study of the social behaviour of animals, esp. as a means to understanding the biological basis of human social behaviour; (in later use) spec.…

Prebiological conditions and processes; the branch of science concerned with these.

The scientific study of temporal or periodic phenomena in biology.

The branch of science concerned with the role of sugars in biological processes.