To shake or quiver excessively and rapidly or involuntarily; to tremble.
An earthquake.
A shake, quiver, or vibration.
A rhythmic, uncontrollable shaking of all or part of the body due to partial muscle contractions.
To cause to twitch; spasm.
To spot or seek out a bird, especially a rare one.
To jerk sharply and briefly.
To perform a twitch; spasm.
A stick with a hole in one end through which passes a loop, which can be drawn tightly over the upper lip or an ear of a horse and twisted to keep the animal quiet during minor surgery.
A brief, small (sometimes involuntary) movement out of place and then back again; a spasm.
Action of spotting or seeking out a bird, especially a rare one.
A brief, contractile response of a skeletal muscle elicited by a single maximal volley of impulses in the neurons supplying it.
The sudden narrowing almost to nothing of a vein of ore.
A trip taken in order to observe a rare bird.
couch grass (Elymus repens; a species of grass, often considered as a weed)