are divisible into
21Cerebral veins — Vein: Cerebral veins Sagittal section of the skull, showing the sinuses of the dura. (Cerebral veins labeled at center left.) Latin venae encephali, venae cerebri Gray s …
22Joseph ibn Shem-Tov — (15th century) was a prolific Judæo Spanish writer born in Castile. He lived in various cities of Spain: Medina del Campo de Leon (1441); Alcalá de Henares (1451); Segovia (1454). Though it is not known precisely what office he held at court, he… …
23Crustacea — Crus*ta ce*a (kr?s t? sh? ?), n. pl. [Neut. pl. of NL. crustaceus pert. to the crust or shell, from L. crusta the hard surfsce of a body, rind, shell.] (Zo[ o]l.) One of the classes of the arthropods, including lobsters and crabs; so called from… …
24Gastric lymph nodes — Infobox Lymph Name = PAGENAME Latin = nodi lymphoidei gastrici GraySubject = 180 GrayPage = 706 Caption = Lymphatics of stomach, etc. Caption2 = Lymphatics of stomach, etc. The stomach has been turned upward. DrainsFrom = Source = DrainsTo =… …
25Triassic — [trʌɪ asɪk] adjective Geology relating to or denoting the earliest period of the Mesozoic era (between the Permian and Jurassic periods, about 245 to 208 million years ago), a time when the first dinosaurs, ammonites, and primitive mammals… …
26Triassic — /traɪˈæsɪk/ (say truy asik) adjective 1. relating to the geological period or system that constitutes the earliest principal division of the Mesozoic era. –noun Also, Triassic era. 2. the period or system characterised by widespread land deposits …
27Triassic — ► ADJECTIVE Geology ▪ relating to or denoting the earliest period of the Mesozoic era (between the Permian and Jurassic periods, about 245 to 208 million years ago), a time when the first dinosaurs, ammonites, and primitive mammals appeared.… …
28Triassic — adj. & n. Geol. adj. of or relating to the earliest period of the Mesozoic era with evidence of an abundance of reptiles (including the earliest dinosaurs) and the emergence of mammals. Usage: Cf. Appendix II. n. this period or system. Etymology …
29Divisibility rule — A divisibility rule is a shorthand way of discovering whether a given number is divisible by a fixed divisor without performing the division, usually by examining its digits. Although there are divisibility tests for numbers in any radix, and… …
30Evenness of zero — The number 0 is even. There are several ways to determine whether an integer is even or odd, all of which indicate that 0 is an even number: it is a multiple of 2, it is evenly divisible by 2, it is surrounded on both sides by odd integers, and… …
