| 释义 |
homodromous, a.|həʊˈmɒdrəməs|
[f. mod.L. homodrom-us, f. Gr. ὁµο- homo- + -δροµος running + -ous. In mod.F. homodrome.]
Running in the same direction: opp. to heterodromous. †a. Mech. Applied to levers of the second and third orders, in which the power and the weight move in the same direction. b. Bot. Turning in the same direction, as two generating spirals of a phyllotaxis (e.g. on the main stem and on a branch).
1710J. Harris Lex. Techn. II. s.v. Homodromus, Of this Homodrom[o]us kind of Leavers, are the Rudders and Oars of Ships and Boats. 1870[see heterodromous]. 1878Masters Henfrey's Bot. 273 An inflorescence homodromous with the principal axis.
So hoˈmodromal, ˈhomodrome adjs. = prec. b.; hoˈmodromy, homodromous condition.
1849J. H. Wilson tr. Jussieu's Elem. Bot. 192 This series of axes is either homodrome or heterodrome. 1866Treas. Bot., Homodromal, having all the spires turned the same way. 1875Bennett & Dyer Sachs' Bot. 171 Two spirals are constructed..the two are homodromal, running in the same direction round the stem. 1880Gray Struct. Bot. (ed. 6) 415/2 Homodromy. |