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Any marine saurian; esp. (Paleon.) the large extinct species of Mosasaurus, Icthyosaurus, Plesiosaurus, and related genera.

st. of Bird. -- Secondary rocks or strata (Geol.), those lying between the Primary, or Paleozoic, and Tertiary (see Primary rocks, under Primary); -- later restricted to strata of the Mesozoic age, and at but little used. -- Secondary syphilis (Med.), the second stage of syphilis, including the period from the first…

engthwise. -- Serpent star (Zoöl.), an ophiuran; a brittle star. -- Serpent's tongue (Paleon.), the fossil tooth of a shark; -- so called from its resemblance to a tongue with its root. -- Serpent withe (Bot.), a West Indian climbing plant (Aristolochia odoratissima). -- Tree serpent (Zoöl.), any species of African…

A constellation on the equator south of Leo; the Sextant.

a sheath, case, or scabbard; to inclose or cover with, or as with, a sheath or case. The leopard . . . keeps the claws of his fore feet turned up from the ground, and sheathed in the skin of his toes. Grew. 'T is in my breast she sheathes her dagger now. Dryden.

encountering the earth, were moving in orbits closely allied to the orbits of comets. See Leonids, Perseids. (b) (Bot.) The American cowslip (Dodecatheon Meadia). See under Cowslip. -- Shooting stick (Print.), a tapering piece of wood or iron, used by printers to drive up the quoins in the chase. Hansard.…

A group of stars in the constellation Leo. See Illust. of Leo. Sickle pod (Bot.), a kind of rock cress (Arabis Canadensis) having very long curved pods.

taining to the country of the ancient Silures; -- a term applied to the earliest of the Paleozoic eras, and also to the strata of the era, because most plainly developed in that country.

A large fresh-water gobioid fish (Eleotris dormatrix).

t of the neck white. Called also white head, white-headed goose, and bald brant. -- Snow leopard (Zool.), the ounce. -- Snow line, lowest limit of perpetual snow. In the Alps this is at an altitude of 9,000 feet, in the Andes, at the equator, 16,000 feet. -- Snow mouse (Zoöl.), a European vole (Arvicola nivalis) whi…

. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera.

ed in one revolution of the straight line about the pole. See Spiral, n. Spire bearer. (Paleon.) Same as Spirifer.

fferent color from the main part, or from the ground upon which it is; as, the spots of a leopard; the spots on a playing card.

eaves. -- Spurge nettle. See under Nettle. -- Spurge olive, an evergreen shrub (Daphne oleoides) found in the Mediterranean region.

p Strepsiptera, formerly considered a distinct order, but now generally referred to the Coleoptera. See Strepsiptera.

se. Swift. We submit that a wooden spoon of our day would not be justified in calling Galileo and Napier blockheads because they never heard of the differential calculus. Macaulay.

A mixture of oleomargarine with lard or other fatty ingredients. It is used as a substitute for butter. See Butterine.

engage; to interest; to charm. Neither let her take thee with her eyelids. Prov. vi. 25. Cleombroutus was so taken with this prospect, that he had no patience. Wake. I know not why, but there was a something in those half-seen features, -- a charm in the very shadow that hung over their imagined beauty, -- which took m…

acutifolium). (b) One of the small black velvety pods, which are used for food in Sierra Leone. -- Wild tamarind (Bot.), a name given to certain trees somewhat resembling the tamarind, as the Lysiloma latisiliqua of Southern Florida, and the Pithecolobium filicifolium of the West Indies.

hings tanned, or persons who are sunburnt; as, tawny Moor or Spaniard; the tawny lion. "A leopard's tawny and spotted hide." Longfellow.