longitudinal movement
121orthopteran — /awr thop teuhr euhn/, adj. 1. orthopterous. n. 2. an orthopterous insect. [1895 1900; < NL Orthopter(a) (see ORTHOPTERON) + AN] * * * ▪ insect Introduction broadly, any member of one of four insect orders. Orthopteran has come to be regarded… …
122reproductive system, human — Organ system by which humans reproduce. In females, the ovaries sit near the openings of the fallopian tubes, which carry eggs from the ovaries to the uterus. The cervix extends from the lower end of the uterus into the vagina, whose opening, as… …
123human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
124roll — I. noun Etymology: Middle English rolle, from Anglo French roule, rolle, from Medieval Latin rolla, alteration of rotula, from Latin, diminutive of rota wheel; akin to Old High German rad wheel, Welsh rhod, Sanskrit ratha wagon Date: 13th century …
125Precession (astronomy) — In astronomy, precession refers to the movement of the rotational axis of a body, such as a planet, with respect to inertial space. In particular, it refers to the precession of the Earth s rotational axis, also called the precession of the… …
126Future — Futurity redirects here. For the ship, see MV Futurity. Near future redirects here. For the song, see The Near Future. For other uses, see Future (disambiguation). The Ghost of Christmas Yet to Come shows Scrooge his future in Dickens …
127Multiple sclerosis signs and symptoms — Main symptoms of multiple sclerosis. Multiple sclerosis can cause a variety of symptoms: changes in sensation (hypoesthesia), muscle weakness, abnormal muscle spasms, or difficulty moving; difficulties with coordination and balance; problems in… …
128Lamb waves — propagate in solid plates. They are elastic waves whose particle motion lies in the plane defined by the plate normal and the direction of wave propagation. In 1917, the English mathematician Horace Lamb published his classic analysis and… …
