What does perturbable mean?
Perturbable is an adjective meaning able to be disturbed, disrupted, or changed from a stable condition. In general contexts, it may suggest that something is emotionally unsettled or easily affected by outside events. In physics, chemistry, mathematics, and related technical fields, the word has a more precise meaning: a perturbable system, state, or quantity is one whose behavior or value can be altered by a small external influence. The related noun “perturbation” is widely used to name such an influence or change, especially in quantum mechanics and the study of dynamic systems. Perturbable is less common in everyday speech than words such as “disturbed” or “unstable,” but it is useful when describing the possibility of change rather than making a judgment about how sensitive something is.
adjectiveAble to be disturbed, disrupted, or unsettled. In physics and mathematics, it describes a system or quantity whose state can be changed by an external influence.
- Able to be disturbed, disrupted, or unsettled.
- Able to be changed from a stable state by an external influence, especially in physics or mathematics.
"The delicate balance of the experiment was highly perturbable, so even a small draft could alter the results."
"The researcher chose a perturbable model to examine how small changes affect the system."
"Although the instrument is precise, its calibration is slightly perturbable by temperature changes."
In physics, “perturbable” captures the idea that even a tiny influence can disturb a carefully arranged system.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does perturbable come from?
Perturbable was formed in the 19th century from “perturb” and the suffix “-able,” meaning “capable of being” the action indicated by the verb. “Perturb” comes through Old French from Latin “perturbare,” meaning “to disturb,” from the prefix “per-” and “turbare,” itself related to “turbidus,” meaning “disordered” or “troubled.” The Latin root also appears in words such as “turmoil,” “turbulent,” and “disturbance.”
Related word forms
How perturbable is actually used
This is a formal or technical adjective. It is especially common in scientific and mathematical writing, where it describes quantities, systems, equilibria, or conditions that can be altered by an external influence.
Easily confused with perturbable
Perturbable means able to be disturbed or changed by an influence, whereas perceptible means able to be noticed or perceived.