Ephemeral vs. Evanescent — What's the Difference?

Lasting for a very short time

Vanishing or likely to vanish like vapor.

An ephemeral plant

Disappearing, vanishing.

Lasting for a markedly brief time

(electromagnetism) Of an oscillating electric or magnetic field: not propagating as an electromagnetic wave but having its energy spatially concentrated in the vicinity of its source.

Having a short lifespan or a short annual period of aboveground growth. Used especially of plants.

(mathematics) Of a number or value: diminishing to the point of reaching zero as a limit; infinitesimal.

Something, especially a plant, that is ephemeral.

Barely there; almost imperceptible.

Something which lasts for a short period of time.

Ephemeral, fleeting, momentary.

Lasting for a short period of time.

(botany) Of plant parts: shed after a period.

(biology) Existing for only one day, as with some flowers, insects, and diseases.

Liable to vanish or pass away like vapor; vanishing; fleeting; as, evanescent joys.

Usually dry, but filling with water for brief periods during and after precipitation.

Vanishing from notice; imperceptible.

Beginning and ending in a day; existing only, or no longer than, a day; diurnal; as, an ephemeral flower.

Tending to vanish like vapor;

Short-lived; existing or continuing for a short time only.

Anything lasting but a day, or a brief time; an ephemeral plant, insect, etc.

Enduring a very short time;