| 释义 |
trinodal, a.|traɪˈnəʊdəl|
[f. tri- + L. nōd-us knot, node + -al1; cf. L. trinōdis.]
a. Having three knots. rare—0.
b. Bot. Having three nodes (node n. 2 b), as a stem.
c. Geom. Having three nodes (node n. 7), as a curve.
1656Blount Glossogr., Trinodal.., that hath three knots, three-knotted. 1866Treas. Bot. 1172 Trinodal, having three nodes only. 1873Salmon Higher Plane Curves vi. (1879) 255 The other will be a trinodal quartic.
So trinode |ˈtraɪnəʊd| Geom., a combination of three nodes at one point of a curve; triˈnodine a. = trinodal a.
1866J. B. Rose tr. Ovid's Fasti i. 612 Alcides grappled him; and broke With club trinodine,..The caitiff's head. 1891Cent. Dict., Trinode. |