basidiosporeBot.|bəˈsɪdɪəʊspɔə(r)| [f. next + spore.] A spore borne at the extremity of a basidium. Hence basidiˈosporousa. 1859Todd Cycl.Anat. & Phys. V. 232/1 The basidiospore is distinguished from all the other acrogenous forms.Ibid. 224/2 Basidiosporous Fungi.