floating island

noun

1. a dessert consisting of boiled custard with portions of meringue, whipped cream, or whipped egg whites and sometimes jelly floating upon it or around it.
2. a floating mass of earth and partly decayed vegetation held together by interlacing roots, as on a lake: usually formed by the accumulation of plant litter; sometimes artificially built on wooden platforms, as in Asia.

noun

1. a floating mass of soil held together by vegetation