transversanadj.
Etymology: Formed as transverse adj. + -an suffix.Previous versions of the OED give the stress as: transˈversan.
Botany.
1900 B. D. Jackson 274/1 Transversan Plane, that which passes through the centre of a Diatom frustule vertically to the pervalvar axis (O. Mueller).
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2019).