timescale
Span of events
A timescale is the span of time over which something happens or is measured: On a geological timescale, human civilization is a blink.
It often appears in planning contexts to indicate expected duration: What's the timescale for this project?
Also spelled as two words: time scale.
Distance between endpoints
- intervalDuration between two points
- periodPunctuation ending sentences
- lengthMeasure of extent
- timeframeDesignated duration for something
window · horizon · range · extent · phase · stretch · term · cycle
Great age, ancient era
- prehistoricBefore documented civilization
- ancientVery old indeed
- medievalOf the Middle Ages
- modernOf recent times
contemporary · dynasty · civilization · epoch · era · age · chronicle · annals
Study of rock layers
- geochronologyStudy of geological ages
- PrecambrianEarliest geological eon
- CambrianEarliest Paleozoic period
- OrdovicianPaleozoic geological period
Silurian · Devonian · Carboniferous · Permian · Triassic · Jurassic · Cretaceous · Paleozoic
Formation of distinct species
- adaptationFitting to new conditions
- mutationPermanent DNA alteration
- divergenceSeparation from common origin
- radiationEnergy propagation through space
extinction · phylogeny · generations · lineage · descent · macroevolution · microevolution · gradualism
Determining size or amount
- resolutionFormal decision or determination
- precisionAccuracy of measurement
- logarithmicBased on exponents
- cosmologicalRelating to universe's origin/structure
astronomical · biological · quantum · nanosecond · picosecond · femtosecond · half-life · decay
span
Distance between endpoints
timeframe · window · horizon · range · extent · phase · stretch · term · cycle · continuum
antiquity
Great age, ancient era
- prehistoricBefore documented civilization
- ancientVery old indeed
- medievalOf the Middle Ages
modern · contemporary · dynasty · civilization · epoch · era · age · chronicle · annals · periodization
stratigraphy
Study of rock layers
- geochronologyStudy of geological ages
- PrecambrianEarliest geological eon
- CambrianEarliest Paleozoic period
Ordovician · Silurian · Devonian · Carboniferous · Permian · Triassic · Jurassic · Cretaceous · Paleozoic · Mesozoic
speciation
Formation of distinct species
- adaptationFitting to new conditions
- mutationPermanent DNA alteration
- divergenceSeparation from common origin
radiation · extinction · phylogeny · generations · lineage · descent · macroevolution · microevolution · gradualism · fitness
measurement
Determining size or amount
- resolutionFormal decision or determination
- precisionAccuracy of measurement
- logarithmicBased on exponents
cosmological · astronomical · biological · quantum · nanosecond · picosecond · femtosecond · half-life · decay · observable
timescaleinstant
Briefest unit of time
moment · split second · point in time · flash · heartbeat