Abnormal clicking, rattling or crackling sound heard from the lungs, often audible only with a stethoscope.
A tremulous sound.
A variation in the third nucleotide of a codon that codes for a specific aminoacid
A low-frequency oscillation sometimes used in dubstep
An unsteady motion.
To move with an uneven or rocking motion, or unsteadily to and fro.
To tremble or quaver.
To cause to wobble.
To vacillate in one's opinions.