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Fundamental :: Fundamental (a.) Pertaining to the foundation or basis; serving for the foundation. Hence: Essential, as an element, principle, or law; important; original; elementary; as, a fundamental truth; a fundamental axiom..

Formyl :: Formyl (n.) A univalent radical, H.C:O, regarded as the essential residue of formic acid and aldehyde..

Appendix :: Appendix (n.) Any literary matter added to a book, but not necessarily essential to its completeness, and thus distinguished from supplement, which is intended to supply deficiencies and correct inaccuracies..

Fundamentally :: Fundamentally (adv.) Primarily; originally; essentially; radically; at the foundation; in origin or constituents.

Hepar :: Hepar (n.) Liver of sulphur; a substance of a liver-brown color, sometimes used in medicine. It is formed by fusing sulphur with carbonates of the alkalies (esp. potassium), and consists essentially of alkaline sulphides. Called also hepar sulphuris (/)..

Scale :: Scale (n.) The thin oxide which forms on the surface of iron forgings. It consists essentially of the magnetic oxide, Fe3O4. Also, a similar coating upon other metals..

Organ :: Organ (n.) A natural part or structure in an animal or a plant, capable of performing some special action (termed its function), which is essential to the life or well-being of the whole; as, the heart, lungs, etc., are organs of animals; the root, stem, foliage, etc., are organs of plants..

Phonautograph :: Phonautograph (n.) An instrument by means of which a sound can be made to produce a visible trace or record of itself. It consists essentially of a resonant vessel, usually of paraboloidal form, closed at one end by a flexible membrane. A stylus attached to some point of the membrane records the movements of the latter, as it vibrates, upon a moving cylinder or plate..

Promorphology :: Promorphology (n.) Crystallography of organic forms; -- a division of morphology created by Haeckel. It is essentially stereometric, and relates to a mathematical conception of organic forms. See Tectology..

Must :: Must (v. i. / auxiliary) To be morally required; to be necessary or essential to a certain quality, character, end, or result; as, he must reconsider the matter; he must have been insane..

Parallel :: Parallel (n.) Anything equal to, or resembling, another in all essential particulars; a counterpart..

Essence :: Essence (n.) The predominant qualities or virtues of a plant or drug, extracted and refined from grosser matter; or, more strictly, the solution in spirits of wine of a volatile or essential oil; as, the essence of mint, and the like..

Intrinsic :: Intrinsic (a.) Inward; internal; hence, true; genuine; real; essential; inherent; not merely apparent or accidental; -- opposed to extrinsic; as, the intrinsic value of gold or silver; the intrinsic merit of an action; the intrinsic worth or goodness of a person..

Chrysarobin :: Chrysarobin (n.) A bitter, yellow substance forming the essential constituent of Goa powder, and yielding chrysophanic acid proper; hence formerly called also chrysphanic acid..

Propionyl :: Propionyl (n.) The hypothetical radical C3H5O, regarded as the essential residue of propionic acid and certain related compounds..

Glycolyl :: Glycolyl (n.) A divalent, compound radical, CO.CH2, regarded as the essential radical of glycolic acid, and a large series of related compounds..

Organule :: Organule (n.) One of the essential cells or elements of an organ. See Sense organule, under Sense..

Imperfect :: Imperfect (a.) Wanting in some elementary organ that is essential to successful or normal activity.

Kernel :: Kernel (n.) The essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a nut; hence, anything included in a shell, husk, or integument; as, the kernel of a nut. See Illust. of Endocarp..

Accidentally :: Accidentally (adv.) In an accidental manner; unexpectedly; by chance; unintentionally; casually; fortuitously; not essentially.

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