30 results found

Search Results for: optical

Optical density

Definition noun (1) The measure of transmittance of an optical medium for a given wavelength. The higher the OD the lower... Read More

Conjugate

Conjugate Definition Conjugate in a broader sense refers to related pairs of substances or entities that are interconnected... Read More

Sonoporation

Definition noun A mechanical method of delivering molecules into the cell using sound, e.g. ultrasonic... Read More

Parallax

parallax 1. The apparent displacement, or difference of position, of an object, as seen from two different stations, or... Read More

Zoology

Zoology Definition Zoology is an ever-evolving branch of Biology dealing with the members of the Kingdom Animalia. It... Read More

Compound microscope

Compound microscope (Science: instrument) a microscope (an optical instrument that augments the power of the eye to see... Read More

Resting potential

Resting Potential Definition The resting potential of a cell is defined as the difference in electrical potential across... Read More

Aperture

Aperture (Science: physics) The opening in an optical system which restricts the size of the bundle of rays incident on a... Read More

Impalefection

Definition noun A method of delivering large molecules into cells using nanomaterials, such as carbon nanofibers, carbon... Read More

Electroporation

Definition noun, plural: electroporations A non-chemical method that transfers the genetic material into the recipient cell... Read More

Canthus

Canthus Definition The canthus refers to the corner or angle of the eye formed by the joining of the lower and upper... Read More

Macroorganism

Definition noun, plural: macroorganisms Any macroscopic organism. Supplement Macroorganisms are large enough to be seen by... Read More

Reticulated

reticulated 1. Resembling network; having the form or appearance of a net; netted; as, a reticulated structure. 2. Having... Read More

Coenzyme

Enzymes can break down complicated large molecules into simpler smaller ones, they can combine small molecules or atoms to... Read More

Absorbance

Definition noun (analytical chemistry) A logarithmic measure of the amount of light absorbed (at particular wavelength) as... Read More

Reduced eye

reduced eye A simplified design of the ocular optical system, represented as having a single refracting surface and a... Read More

Rayleigh criterion

Rayleigh criterion (Science: microscopy) A criterion chosen by lord Rayleigh to define the limit of resolution of a... Read More

Ion

We have been introduced to ions in varied fields of Science like Physics, Chemistry, and Biology. This article takes you on... Read More

Microscope

Microscope (Science: instrument) A piece of laboratory equipment that is used to magnify small things that are too small to... Read More

Transfection

Definition noun (molecular biology) The process of deliberate introduction of nucleic acids into a recipient eukaryotic... Read More

Nodal points

nodal point One of two point's in a compound optical system so related that a ray directed toward the first point will... Read More

Matrix

Bodies of living organisms are organized structures. These are organized in a hierarchy of organ systems, organs, tissues,... Read More

Micrometer

micrometer An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of... Read More

Airy disk

Airy disk (Science: microscopy) The image of a bright point object as focused by a lens system. With monochromatic light, it... Read More

Mach line

Mach line The apparent line of contrasting density bordering a soft tissue shadow on a radiograph; it is an optical illusion... Read More

Cardinal points

Cardinal points The four points in the pelvic inlet toward one of which the occiput of the baby is usually directed in case... Read More

Eyepiece

Eyepiece (Science: microscopy) The lens system used in an optical instrument for magnification of the image formed by the... Read More

Illusion

Illusion 1. (Science: psychology) An unreal image presented to the bodily or mental vision; a deceptive appearance; a false... Read More

Accommodation

Accomodation, in general sense, may refer to the dwelling or a transient lodging. In biology, it refers to an adjustment or... Read More

Gene gun

Definition noun A method of transferring large molecules such as DNA into the cell by coupling the DNA to a nanoparticle of... Read More