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colors (Opt.), the seven colors into which light is resolved when passed through a prism; primary colors. See Primary colors, under Color. -- Prismatic compass (Surv.), a compass having a prism for viewing a distant object and the compass card at the same time. -- Prismatic spectrum (Opt.), the spectrum produced by t…

The primary growth from the spore in certain cryptogamous plants; as, the proembryo, or protonema, of mosses.

ction of boiling dilute acids on proteids. Proteoses are divided into the two groups, the primary and secondary proteoses.

The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the oöphoric generation of ferns, etc.

A combining form prefix signifying first, primary, primordial; as, protomartyr, the first martyr; protomorphic, primitive in form; protoplast, a primordial organism; prototype, protozoan.

The primary growth from the spore of a moss, usually consisting of branching confervoid filaments, on any part of which stem and leaf buds may be developed.

copied; the pattern of anything to be engraved, or otherwise copied, cast, or the like; a primary form; exemplar; archetype. They will turn their backs on it, like their great precursor and prototype. Burke.

One of the primary, or first-formed, segments of an embryonic arthropod.

In the United States, a free primary, grammar, or high school maintained by the local government.

A color formed by, or resembling that formed by, a combination of the primary colors red and blue. Arraying with reflected purple and gold The clouds that on his western throne attend. Milton.

Not proximate or acting directly; primary; distant. "From the effect to the remotest cause." Granville.

In Gothic vaulting, one of the primary members of the vault. These are strong arches, meeting and crossing one another, dividing the whole space into triangles, which are then filled by vaulted construction of lighter material. Hence, an imitation of one of these in wood, plaster, or the like.

which descend and establish themselves in the soil. See Illust. of Mangrove. -- Multiple primary root (Bot.), a name given to the numerous roots emitted from the radicle in many plants, as the squash. -- Primary root (Bot.), the central, first-formed, main root, from which the rootlets are given off. -- Root and bra…

A place of primary instruction; an establishment for the instruction of children; as, a primary school; a common school; a grammar school. As he sat in the school at his primer. Chaucer.

Suceeding next in order to the first; of second place, origin, rank, rank, etc.; not primary; subordinate; not of the first order or rate. Wheresoever there is normal right on the one hand, no secondary right can discharge it. L'Estrange. Two are the radical differences; the secondary differences are as four. Bacon.…

Not original or primary; received from another. They have but a secondhand or implicit knowledge. Locke.

lding the first place in a series of developed results or consequents; germinal; radical; primary; original; as, seminal principles of generation; seminal virtue. The idea of God is, beyond all question or comparison, the one great seminal principle. Hare. Seminal leaf (Bot.), a seed leaf, or cotyleden. -- Seminal rec…

soda water. Called also cooking soda, saleratus, and technically, acid sodium carbonate, primary sodium carbonate, sodium dicarbonate, etc. -- Sodium carbonate, a white crystalline substance, Na2CO3.10H2O, having a cooling alkaline taste, found in the ashes of many plants, and produced artifically in large quantities…

o openness or hollowness; strength; soundness, -- opposed to weakness or instability; the primary quality or affection of matter by which its particles exclude or resist all others; hardness; massiveness. That which hinders the approach of two bodies when they are moving one toward another, I call solidity. Locke.…

A cavity in the primary nectocalyx of certain Siphonophora. See Illust. under Nectocalyx.