(n): a state lacking normal awareness of the self or environment
(n): (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds)
(n): a bunch of hair or feathers or growing grass
(n): (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed
(n): any collection of particles (e.g., smoke or dust) or gases that is visible
