a chemical substance produced by a living organism, or such a substance produced synthetically.

The chemistry of living organisms; the chemistry of the processes incidental to, and characteristic of, life.

Of or pertaining to biodynamics, or the doctrine of vital forces or energy.

The doctrine of vital forces or energy.

electric phenomena in animals or plants.

biological science applied to the study the relation between workers and their environments.

a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them.

a vitamin that maintains the resistance of cell and capillary walls to permeation; -- called also vitamin P and citrin.

Bioplasm.

Pertaining to biogenesis.

produced by living organisms; as, biogenic methane.

A believer in the theory of biogenesis.

the production of living organisms from other living organisms; same as biogenesis{1}.

A doctrine that the genesis or production of living organisms can take place only through the agency of living germs or parents; -- called also biogeny; -- opposed to abiogenesis. Life development generally.

of or pertaining to biogeography.

The branch of biology which deals with the geographical distribution of animals and plants. It includes both zo/geography and phytogeography.

The investigation of life.

An animated picture machine for screen projection; a cinematograph.

One who writes an account or history of the life of a particular person; a writer of lives, as Plutarch.

Of or pertaining to biography; containing biography.

To write a history of the life of.

The written history of a person's life.

Of or relating to biology.

use of biological principles in explaining human behavior, especially social behavior.

A student of biology; one versed in the science of biology.

of or pertaining to biologism.

The science of life; that branch of knowledge which treats of living matter as distinct from matter which is not living; the study of living tissue. It has to do with the origin, structure, development, function, and distribution of animals and plants.

a type of luminescence produced by biological or biochemical processes, such as a glowworm glow or the action of luciferase on luciferin. A well-known example is that of firefly luminescence. See also luciferin.

The destruction of life.

Relating to the destruction of life.

Relating to biomagnetism.

Animal magnetism.

a specific type of complex ecological community characterized by specific environmental conditions and a distinctive group of plants and animals, maintained in a relatively stable equilibrium, such as a rain forest biome or prairie biome.

The application of engineeering principles to solve problems in medicine, such as the design of artificial limbs or organs; -- called also bioengineering.

The application of the principles and techniques of the natural sciences, especially biology, to investigate and solve problems in clinical medicine.

Measurement of life; calculation of the probable duration of human life.

The physiological individual, characterized by definiteness and independence of function, in distinction from the morphological individual or morphon.

Physiology.

One of the smaller vital units of a cell, the bearer of vitality and heredity. See Pangen, in Supplement.

An instrument combining a cinematograph and a phonograph so that the moving figures on the screen are accompanied by the appropriate sounds; -- an archaic term replaced by movie projector.

A name suggested by Dr. Beale for the germinal matter supposed to be essential to the functions of all living beings; the material through which every form of life manifests itself; unaltered protoplasm.

Pertaining to, or consisting of, bioplasm.

A tiny mass of bioplasm, in itself a living unit and having formative power, as a living white blood corpuscle; bioblast.

Bioplasmic.

Pertaining to psychical phenomena in their relation to the living organism or to the general phenomena of life.

an apparatus in which a suspension of microorganisms in a liquid are used to perform chemical reactions, as in synthesis of pharmaceutical agents or the conversion of harmful waste to less harmful substances. The reactor consists of a vessel to contain the suspension of microorganisms, plus a variety of attached devices used to control the reaction.

the branch of biotechnology that uses biological processes to overcome environmental problems.

A physiological organ; a living organ; an organ endowed with function; -- distinguished from idorgan.

A view of life; that which gives such a view.

The physical phenomena of organized bodies, in opposition to their organic or vital phenomena.

Vital statistics.

production of a chemical compound by a living organism.

of or pertaining to biosynthesis.

of or pertaining to biosystematics.

use of data (e. g. cytogenetic or biochemical) to assess taxonomic relations esp within an evolutionary framework.

use of data (e. g. cytogenetic or biochemical) to assess taxonomic relations especially within an evolutionary framework.

all the plant and animal life of a particular region.

The classification of living organisms according to their structural character; taxonomy.

same as bioengineering.

Relating to life; as, the biotic principle.

Mica containing iron and magnesia, generally of a black or dark green color; -- a common constituent of crystalline rocks. See Mica.

a region uniform in its environmental conditions and in the types of plants and animals living in it.

a group of organisms sharing the same genotype.

of or pertaining to a biotype.

derived from two separate ferilized ova; -- of twins; as, fraternal twins are biovular. Antonym of identical.

Palmately branched, with the branches again palmated.

Of or pertaining to the diameter of the cranium, from one parietal fossa to the other.

Bringing forth two at a birth.

Capable of being divided into two parts.

Dividing into two parts. A number that divides another into two equal parts without a remainder.

Divisible into two parts.

Being in two parts; having two correspondent parts, as a legal contract or writing, one for each party; shared by two; as, a bipartite treaty.

The act of dividing into two parts, or of making two correspondent parts, or the state of being so divided.

Having two margins toothed like a comb.

Having two feet; two-footed.

Having two feet; biped.

Having a shell or covering like a double shield.

Having two wings.

An ax with an edge or blade on each side of the handle.

Having two petals.

The larva of certain starfishes as developed in the free-swimming stage.

Twice pinnate.

Doubly pinnatifid.

Having, or consisting of, two superposed planes, a/rocurves, or the like; of or pertaining to a biplane; as, a biplane rudder.

Twice folded together.

The state of being twice folded; reduplication.

Doubly polar; having two poles; as, a bipolar cell or corpuscle.

Bipolar quality.

Relating to books printed at Deuxponts, or Bipontium (Zweibr/cken), in Bavaria.

A prism whose refracting angle is very nearly 180 degrees.

Having two punctures, or spots.

Having two points.

Having an eyelike spot on the wing, with two dots within it of a different color, as in some butterflies.

Consisting of two pyramids placed base to base; having a pyramid at each of the extremities of a prism, as in quartz crystals.

The fourth power, or the square of the square. Thus 4x4=16, the square of 4, and 16x16=256, the biquadrate of 4.

A biquadrate. A biquadratic equation.

An aspect of the planets when they are distant from each other by twice the fifth part of a great circle -- that is, twice 72 degrees.

consisting of, combining two races.

showing both bilateral and radial symmetry.

Having two rays; as, a biradiate fin.

Having, or consisting of, two branches.

To whip with a birch rod or twig; to flog.

a canoe made with the bark of a birch tree.

Of or relating to birch.

To catch or shoot birds.

Quick-sighted; catching a glance as one goes.

a common trailing perennial milkwort of eastern North America (Polygala paucifolia), having leaves like wintergreen and usually rosy-purple flowers with winged sepals.

Flighty; passing rapidly from one subject to another; not having the faculty of attention.

A molding whose section is thought to resemble a beak.

A plant with a small bright flower, as the Adonis or pheasant's eye, the mealy primrose (Primula farinosa), and species of Veronica, Geranium, etc.

A papilionaceous plant, the Ornithopus, having a curved, cylindrical pod tipped with a short, clawlike point.

An interior angle or notch cut across a piece of timber, for the reception of the edge of another, as that in a rafter to be laid on a plate; -- commonly called crow's-foot in the United States.

The nest in which a bird lays eggs and hatches her young.

Hunting for, or taking, birds' nests or their contents.

The knotgrass (Polygonum aviculare).

an ornamental basin (usually in a garden) for birds to bathe in.

A short blunt arrow for killing birds without piercing them. Anything which smites without penetrating.

a person with confused ideas; incapable of serious thought.

A cage for confining birds.

A sound made in imitation of the note or cry of a bird for the purpose of decoying the bird or its mate.