Septinsular, sept-in′sū-lar, adj. consisting of seven islands. [L. septem, seven, insula, island.]
Septisyllable, sep′ti-sil-a-bl, n. a word of seven syllables.
Septomaxillary, sep-tō-mak′si-lā-ri, adj. combining characters of a nasal septum and a maxillary bone.—n. a bone in some birds uniting the maxillopalatines of opposite sides.
Septonasal, sep-tō-nā′zal, adj. forming a nasal septum.—n. a bone of this kind.
Septuagenarian, sep-tū-aj-e-nā′ri-an, n. a person seventy years old.—adj. Septūag′enary, consisting of seventy.—n. one seventy years old. [L. septuagenarius—septuageni, seventy each—septem, seven.]
Septuagesima, sep-tū-a-jes′i-ma, n. the third Sunday before Lent—the seventieth day before Easter (the common but dubious explanation).—adj. Septuages′imal, consisting of seventy: counted by seventies. [L. septuagesimus—septem, seven. The name, like Quinquagesima and Sexagesima, was most probably adopted on a false analogy with Quadragesima, the Latin name of Lent.]
Septuagint, sep′tū-a-jint, n. the version in Hellenistic Greek of the Old Testament, said to have been made by 72 translators at Alexandria by command of Ptolemy Philadelphus (284-247 B.C.)—usually expressed by LXX.—adj. Septuagin′tal. [L. septuaginta—septem, seven.]
Septuary, sep′tū-ā-ri, n. (obs.) something composed of seven.
Septum, sep′tum, n. (bot., anat.) a partition separating two cavities: one of the radial plates of a coral:—pl. Sep′ta.—adj. Sep′tulate, having imperfect or spurious septa.—n. Sep′tulum, a little septum or small partition. [L.,—sæpīre, sepīre, to enclose.]