The Collaborative International Dictionary
Seven \Sev"en\, a. [OE. seven, seoven, seofen, AS. seofon, seofan, seofen; akin to D. zeven, OS., Goth., & OHG. sibun, G. sieben, Icel. sjau, sj["o], Sw. sju, Dan. syv, Lith. septyni, Russ. seme, W. saith, Gael. seachd, Ir. seacht, L. septem, Gr. ???, Skr. saptan. [root]305. Cf. Hebdomad, Heptagon, September.] One more than six; six and one added; as, seven days make one week.
Seven sciences. See the Note under Science, n., 4.
Seven stars (Astron.), the Pleiades.
Seven wonders of the world. See under Wonders.
Seven-year apple (Bot.), a rubiaceous shrub ( Genipa clusiifolia) growing in the West Indies; also, its edible fruit.
Seven-year vine (Bot.), a tropical climbing plant ( Ipom[oe]a tuberosa) related to the morning-glory.
Jalap \Jal"ap\, n. [F., fr. Sp. jalapa; -- so called from Jalapa, a town in Mexico, whence it was first obtained.] (Med.) The tubers of the Mexican plant Ipom[oe]a purga (or Exogonium purga) of the family Convolvulaceae, a climber much like the morning-glory. The abstract, extract, and powder, prepared from the tubers, are well known purgative (cathartic) medicines, and are also called jalap. Other species of Ipom[oe]a yield several inferior kinds of jalap, as the Ipom[oe]a Orizabensis, and Ipom[oe]a tuberosa.
False jalap, the root of Mirabilis Jalapa, four-o'clock, or marvel of Peru.