iso-, is-

(Greek: equal; by extension: same, similar, alike; normally used as a prefix)

Used in numerous terms, nearly all scientific; denoting: equality, similarity, uniformity, or identity; the second element being properly and usually of Greek origin, rarely of Latin [the proper prefix in the latter case being equi-]. In biology, denoting for or from different individuals of the same species). For a large list of iso- opposites or antonyms, see aniso-.

isopach, isopachous
A line on a map that connects points of equal thickness within a particular stratigraphic unit or group of units.
An equiglacial line connecting points where ice is present for approximately the same number of days in winter.
isopathy (s) (noun) (no pl)
1. The theory that disease may be cured by a product of the disease: An example of isopathy can be exemplified by the belief that small-pox can be cured by application of the variolouss matter.
2. The popular notion that disease in a particular organ may be cured by eating the same organ of a healthy animal: Sam read an article in the newspaper about isopathy in which a person ate part of a healthy animal to cure the ailment of the similar organ in his own body.
3. A method of treating disease by administering products of the disease or portions of the affected organ: Isopathy is a form of homeopathy in which it is believed by some people that a cure can be obtained by using a part of the infected organ.
A line on a weather map connecting points where ice formation begins at approximately the same time at the onset of winter.
A figure having a perimeter equal to that of another.
1. That branch of geometry which deals with isoperimetrical figures, and the problems connected with them.
2. The science of figures having equal perimeters or boundaries.
Feeding on one or allied species; such as, fungi.
isophenomenal (s) (noun), isophenomenals (pl)
About a line on a map, connecting places at which phenomena of any kind are equal.
1. A line on a language map surrounding an area within which a particular pronunciation is used.
2. A phonetic isogloss; also, a phonetic feature shared by speakers in contiguous areas.
3. Phonetic feature shared by some but not all of the speakers of a dialect, language, or group of related languages.
isophote, isophotic
A line (imaginary or in a diagram) connecting points where the brightness or the illumination is the same.
Having uniform (similar form) foliage leaves, on the same plant or stem.
An individual plant of a compound plant-organism, not differentiated from the rest.
Equal vision in the eyes.
Representing, having, or characterized by equal or constant pressure; also, a line in a diagram representing states of equal pressure.
isoplankt (s) (noun), isoplankts (pl)
A line on a map that represents the distribution of equal quantities of plankton, or of particular planktonic species: Professor Black asked his students to study the isoplankts to give a talk about certain types of plankton and their grouping or formations in the water.

Inter-related cross references, directly or indirectly, involving word units dealing with "equal, identical, same, similar": auto-; emul-; equ-, equi-; homeo-; homo-; pari-; peer; rhomb-; syn-; tauto-.