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The primitive mouth and esophagus of the embryo of annelids and arthropods.

One of the several primary divisions of either the animal, or vegetable kingdom, as, in zoölogy, the Vertebrata, Tunicata, Mollusca, Articulata, Molluscoidea, Echinodermata, Coelentera, and the Protozoa; in botany, the Phanerogamia, and the Cryptogamia.

A yellow flowered evening primrose (Taraxia, syn. Onothera, ovata) native of California.

several species of Kneiffia, esp. K. fruticosa (syn. Onothera fruticosa), of the Evening-primrose family, having flowers that open by daylight.

huric acid, whereby the insoluble neutral calcium phosphate, Ca3(PO4)2, is changed to the primary or acid calcium phosphate Ca(H2PO4)2, which is soluble and therefore available for the soil.

One who is bound with and for another who is primarily liable, and who is called the principal; one who engages to answer for another's appearance in court, or for his payment of a debt, or for performance of some act; a bondsman; a bail. He that is surety for a stranger shall smart for it. Prov. xi. 15.…

sexual intercourse or by hereditary transmission, and occurring in three stages known as primary, secondary, and tertiary syphilis. See under Primary, Secondary, and Tertiary.Treponema pallidum. Usu. tretable with penicillin or other beta-lactam antibiotics.

various ways, so as to form a great number of different figures. It is now often used in primary schools as a means of instruction.

Of, pertaining to, or designating, an acid which is the primary acid amide derivative of tartaric acid.

the substitution of three atoms or radicals; as, a tertiary alcohol, amine, or salt. Cf. Primary, and Secondary. (CH3)3C.OH.

(notably nux vomica, strychnine, and brucine) which, either as a remedy or a poison, acts primarily on the spinal cord, and which, when taken in comparatively large quantity, produces tetanic spasms or convulsions.

rs raised above the stigma, and visible at the throat of the corolla, as in long-stamened primroses; -- the reverse of pin-eyed.

lagging of the tide, while the acceleration of the recurrence of high water is termed the priming of the tide. See Lag of the tide, under 2d Lag. -- Tide dial, a dial to exhibit the state of the tides at any time. -- Tide gate. (a) An opening through which water may flow freely when the tide sets in one direction, bu…

The preposition to primarily indicates approach and arrival, motion made in the direction of a place or thing and attaining it, access; and also, motion or tendency without arrival; movement toward; -- opposed to Ant: from. "To Canterbury they wend." Chaucer. Stay with us, go not to Wittenberg. Shak. So to the sylvan l…

as of Venus across the sun's disk, or of a satellite or its shadow across the disk of its primary.

A primitive vehicle, common among the North American Indians, usually two trailing poles serving as shafts and bearing a platform or net for a load.

acing the corpse among the branches of a tree or in a hollow trunk, a practice among many primitive peoples.

raphic tracing characteristic of tricrotism shows two secondary crests in addition to the primary.

Of, pertaining to, or designating, that condition of the ovum in which there are three primary germinal layers, or in which the blastoderm splits into three layers.

A theory of the development of mammalian molar teeth. The primitive stage is that of simple cones, as in reptiles. The simple cone then developed a smaller cone in front and another behind. Next, a cingulum was developed, and the three cones became arranged in a triangle, the two smaller cusps having moved to the outer…