[awr-thuh-trop-ik, -troh-pik] /ˌɔr θəˈtrɒp ɪk, -ˈtroʊ pɪk/
Botany. noting, pertaining to, or exhibiting a mode of vertical growth.
(botany) relating to or showing growth that is in direct line with the stimulus
(of a material) having different elastic properties in different planes
orthotropic or·tho·trop·ic (ôr’thə-trŏp’ĭk, -trō’pĭk)
Tending to grow or form along a vertical axis.
or·thot’ro·pism (ôr-thŏt’rə-pĭz’əm) n.
[awr-tho-truh-piz-uh m] /ɔrˈθɒ trəˌpɪz əm/ noun 1. Botany. orthotropic tendency or growth.
[awr-tho-truh-puh s] /ɔrˈθɒ trə pəs/ adjective 1. Botany. (of an ovule) straight and symmetrical, with the chalaza at the evident base and the micropyle at the opposite extremity. /ɔːˈθɒtrəpəs/ adjective 1. (of a plant ovule) growing straight during development so that the micropyle is at the apex Compare anatropous
[awr-thoh-zahy-leen] /ˌɔr θoʊˈzaɪ lin/ noun 1. Chemistry. a clear, colorless, poisonous, flammable liquid, C 8 H 10 , the ortho isomer of xylene: used chiefly in the synthesis of phthalic anhydride.
[awr-thraws; English awr-thros] /ˈɔr θrɔs; English ˈɔr θrɒs/ noun 1. Greek Orthodox Church. the morning office, corresponding to matins.