noun. In pathology, a forward displacement in the horizontal plane, especially a misplacement of the uterus.

noun. In grammar, the placing of a word before another word which, by ordinary rules, it ought to follow.

noun. In botany, the non-alternation of the members of contiguous circles in a flower, the corresponding parts being opposite to each other: otherwise called superposition.

noun. The placing of a before another, which, by ordinary rules, ought to follow it.

noun. The placing of something in front of something else, especially of words in a sentence.