interspinal plane n.
A horizontal plane passing through the anterior superior iliac spines, marking the boundary between the lateral and umbilical regions and between the inguinal and pubic regions.
[spou-zuh l] /ˈspaʊ zəl/ noun 1. Often, spousals. the ceremony of marriage; nuptials. adjective 2. nuptial; matrimonial. /ˈspaʊzəl/ noun 1. (often pl) adjective 2. of or relating to marriage adj. 1510s, from spousal (n.) “condition of being espoused, action of marrying,” from Old French esposailles (see espousal).
[in-ter-steyd] /ˈɪn tərˌsteɪd/ noun, Geology. 1. a period of temporary retreat of ice during a glacial stage; a warming period.
[in-ter-steyd] /ˈɪn tərˌsteɪd/ noun, Geology. 1. a period of temporary retreat of ice during a glacial stage; a warming period. /ˌɪntəˈsteɪdɪəl/ adjective, noun 1. another word for interglacial
[steyj] /steɪdʒ/ noun 1. a single step or degree in a process; a particular phase, period, position, etc., in a process, development, or series. 2. a raised platform or floor, as for speakers, performers, etc. 3. Theater. 4. the stage, the theater, especially acting, as a profession: He plans to make the stage his career. […]