decussate


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

decussate

 [de-kus´āt]
1. to cross in the form of an X.
2. crossed like the letter X.

de·cus·sate

(dē-kŭs'āt),
1. To cross.
2. Crossed like the arms of an X.
[L. decusso, pp. -atus, to make in the form of an X, fr. decussis, a large, bronze Roman (2nd c. BCE), 10-unit coin marked with an X to indicate its denomination]

decussate

[dəkus′āt]
Etymology: L, decussis, intersection
to cross in the form of an "X," as certain nerve fibers from the retina cross at the optic chiasm. decussation, n.

de·cus·sate

(dē-kŭs'āt)
1. To cross.
2. Crossed like the arms of an X.
[L. decusso, pp. -atus, to make in the form of an X, fr. decussis, a large, bronze Roman (2nd c. BCE), 10-unit coin marked with an X to indicate its denomination]

decussate

(of leaves) at right angles to each other.

decussate

crossed, as the arms of an X (e.g. decussation of pyramidal tracts)

decussate

1. to cross especially in the form of Y.
2. crossed especially like the letter Y.
References in periodicals archive ?
1: Apical -- x surface with decussate sculpture, base with fine spiral sculpture; periphery rounded with thin raised cord; peristome reflected over umbilicus.
strong ocellar bristles, decussate postocellars, cluster of setulae on anterior of frons and two rows of postocular setae).
Opposite decussate leaves, glabrous or with very short hairs sparsely distributed along the central vein; elliptic oblong-elliptic or ovate-elliptic, blade (4.
Leaves alternate, decussate, or whorled, sometimes distally clustered on shoots, entire to serrate, and often with margins strongly revolute and leaves needle-like (i.
Swamy and Bailey (1949) and Endress (1993) determined that this aggregation is an inflorescence, based on the suture positions and also on the fact that the carpels are in an approximately decussate arrangement, not at the same level, and that each has a membranous bract at the base.
Morphologically the subtending, decussate lateral appendages in pim flowers (presepal) seem homologous with bracteoles, as seen in Sophora japonicum (Tucker & Douglas, 1994).
5 cm long, subtended by 10 persistent, decussate, ovate, keeled scales; arils ovoid or ellipsoid, 1.
Ensis spp, Ruditapes decussate, Solen marginatus), peppery furrow shell (Scobicularia phma), carpet shell (Venerupis vellastra), cockles (Cerastoderma edule), scallops (Patinopecten yessoensis), and oysters (Crassostrea japonica) (Jorgensen et al.
Seasonal variations in condition, reproductive activity, and gross biochemical composition of two species of adult clam reared in a common habitat: Tapes decussates L.
Effect of microalgal diets and commercial wheat germ flours on the lipid profile of Ruditapes decussates spat.