84 results found

Search Results for: axis

Sagittal axis

Definition noun (anatomy) (1) An anatomical axis or imaginary line that lies perpendicular to the sagittal plane. (2) The... Read More

Pelvic axis

pelvic axis A hypothetical curved line joining the centre point of each of the four planes of the pelvis, marking the centre... Read More

Frontal axis

Definition noun (anatomy) (1) An anatomical axis or imaginary line that lies perpendicular to the frontal plane. (2) The... Read More

Nervous System

    THE is the most complicated and highly organized of the various systems which make up the human body. It is the... Read More

Diarthrodial joint

What is a diarthrodial joint? A diarthrosis joint is a freely moving joint characterized by its mobility and joint cavity... Read More

Axis

Axis (Science: botany) a stem, commonly used for the main stem of a whole plant or of an... Read More

Longitudinal section

Longitudinal Section Definition To describe the direction of movements and location of different body structures, a... Read More

Codon

What does codon mean? A codon, in biology, is the basic genetic unit of life that acts as the template for the amino acid... Read More

Symmetry

Definition noun, plural: symmetries Correspondence of parts (in terms of form, size, distribution, or arrangement) on... Read More

Radial symmetry

Definition noun A form of symmetry in which the body plan is divisible into identical parts around a central... Read More

Vertex

vertex 1. (Science: anatomy) A turning point; the principal or highest point; top; summit; crown; apex. Specifically: the... Read More

Photosynthesis

Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More

Abscissa

Abscissa (Science: geometry) One of the elements of reference by which a point, as of a curve, is referred to a system of... Read More

Revolution

revolution 1. The act of revolving, or turning round on an axis or a center; the motion of a body round a fixed point or... Read More

Intercalary meristem

The basic structural framework of plants is composed of different types of tissues. Based upon the capacity to divide, the... Read More

Pivot

pivot 1. A fixed pin or short axis, on the end of which a wheel or other body turns. 2. The end of a shaft or arbor which... Read More

Eadie-hofstee plot

Eadie-hofstee plot (Science: biochemistry) a graphical representation of enzyme kinetic data in which the velocity of the... Read More

Chordata

Chordata Definition What is Chordata? Chordata is the phylum of the animal kingdom that includes a large number of animal... Read More

Gyration

Gyration 1. The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis;... Read More

Bilateral symmetry

Definition noun, plural: bilateral symmetries A form of symmetry in which the opposite sides along a midline is a duplicate... Read More

Poles

Pole 1. A long, slender piece of wood; a tall, slender piece of timber; the stem of a small tree whose branches have been... Read More

Vortex

vortex Origin: L. Vortex, vertex, -icis, fr. Vortere, vertere, to turn. See Vertex. 1. A mass of fluid, especially of a... Read More

Mutualistic symbiosis

Mutualistic Symbiosis Definition In order to understand what a mutualistic symbiotic relationship means, we will break down... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More

Capsid

Capsid Definition A capsid is a three-dimensional proteinaceous capsular shell around a virus that encloses the viral... Read More

Asymmetry

Definition noun The lack or absence of symmetry Supplement In biology, the body plan of many organisms exhibit symmetry.... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Binary fission

Binary Fission Definition What is binary fission? In biology, binary fission is a type of asexual reproduction where a... Read More

Spin

spin 1. To practice spinning; to work at drawing and twisting threads; to make yarn or thread from fibre; as, the woman... Read More

Stems

External Form of a Woody Twig A woody twig, or stem, is an axis with leaves attached. The leaves are arranged in various... Read More

Morphology

Morphology Definition Morphology means the study of the shape and structure of living things from a biological perspective.... Read More

Graph

Graph 1. A line or tracing denoting varying values of commodities, temperatures, urinary output, etc.; more generally, any... Read More

Eccentric

Eccentric 1. Deviating or departing from the center, or from the line of a circle; as, an eccentric or elliptical orbit;... Read More

H and d curve

Definition noun A graph in which the density of the photographic film (vertical axis) is plotted against the logarithm of... Read More

Condyloid joint

A joint is a point where two bones are attached and are capable of movement. The joints not only provide the movements of... Read More

Repolarization

Definition noun The process or act of repolarizing; the restoration of a polarized condition Supplement In physiology,... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Hormone Production

Reviewed by: Mary Anne Clark, Ph.D. Hormones are chemical messengers produced by glands in the endocrine system.... Read More

Parabola

parabola Origin: NL, fr. Gr.; so called because its axis is parallel to the side of the cone. See Parable, and cf.... Read More

Fovea dentis atlantis

Fovea dentis atlantis --> facet of atlas for dens a circular facet on the posterior (inner) surface of the anterior arch... Read More