(botany) The area in a plant's leaf, stem, or fruit stalk, where the abscission layer if formed along with weakened sclerenchyma, absent collenchyma, and dense cytoplasm.

plural of absciss layer

Alternative form of abscission layer

(geometry) The first of the two terms by which a point is referred to, in a system of fixed rectilinear coordinate (Cartesian coordinate) axes.

(biochemistry, dated) A plant hormone controlling the dropping off or abscission of certain plant parts, notably the leaves of trees in autumn or cotton bolls.

plural of abscissa

plural of abscissa

plural of abscissin

(obsolete) plural of abscissa

plural of abscissio infiniti