, more allochoric, most allochoric
1. Describing a species that inhabits two or more closely related communities; such as, forest and grassland, in the same region.
2. Related to something occurring in two or more communities within a given geographical region.
Exhibiting color variation or having the ability to change color.
The formation of other coloring agents from a dye that is unstable in solution.
A change in the color of the hair and/or skin.
The radiation emitted from a substance at a particular wavelength, resulting from the absorption of incident radiation of a different wavelength which occurs in fluorescence or the Raman effect.
, more allochronic, most allochronic
1. Relating to not being contemporary or existing at different times: There have been allochronic populations of species living, growing, or reproducing during different seasons of a year.
2. Pertaining to different segments of geologic time: Susie wanted to know what plants occurred in the allochronic periods of the Earth's history.
allochronic speciation (s) (noun)
, allochronic speciations (pl)
A form of organic evolution starting from a life-giving reproduction that happens due to a change in time of breeding which lessens or stops gene flow between two groups of a species: Allochronic speciation is the process of developing different biological groups as a result of members of the population that have different breeding seasons or patterns, or differing in the use of time during the day or night, rather than through geographic separation.
allochthon (s) (noun)
, allochthon (pl)
A geological formation not formed in the region where it was found: Allochthon
takes place when a geological structure is moved to its present location by tectonic forces.
An allochthon is a mass of rock that has been transported a great distance from its original place of deposition, usually by tectonic forces, such as overthrusting or gravity sliding.
Am allochthon can be a rock mass formed somewhere other than its present location and was transported by fault movements, large-scale gravity sliding, or similar processes.
Referring to something not native to a particular habitat: Allochthonous
rocks or deposits have emigrated or been imported from another environment.
Allochthonous features of a landscape or elements of its geologic structure are those that have been moved to their current position by tectonic forces.
In geology, allochthonous substances in a present site are away from their place of origin.
allochthonous coal (s) (noun) (no pl)
A type of coal formed from accumulated plant material that was transported from its original place of growth and deposited elsewhere: Judy's teacher told his class about allochthonous coal that had been formed from plant substances that accrued from a place far from where the coal was formed.
allochthonous stream (s) (noun)
, allochthonous streams (pl)
A stream that flows in a channel it did not itself form: Mr. Smart showed his class a photo of a river, or allochthonous stream, rushing along in a man-made or artificial duct.
Movement on the side of the body opposite the one the patient was asked to move.
1. Passive or reflex movement other than controlled motion.
2. Involuntary, or another, movement which is not intended.
Inter-related cross references, directly or indirectly, involving word units meaning "another, other, different, alternating, varied, changing":