essential+element
31essential — /əˈsɛnʃəl / (say uh senshuhl) adjective 1. absolutely necessary; indispensable: discipline is essential in an army. 2. relating to or constituting the essence of a thing. 3. having the nature of an essence of a plant, etc. 4. being such by its… …
32element — noun Etymology: Middle English, from Anglo French & Latin; Anglo French, from Latin elementum Date: 13th century 1. a. any of the four substances air, water, fire, and earth formerly believed to compose the physical universe b. plural weather… …
33Essential subgroup — In mathematics, especially in the area of algebra studying the theory of abelian groups, an essential subgroup is a subgroup that determines much of the structure of its containing group. The concept was generalized to essential… …
34element — I (New American Roget s College Thesaurus) n. component, part, substance, constituent, ingredient; factor, principle, rudiment, fundamental. See cause, composition. II (Roget s IV) n. 1. [A part] Syn. component, constituent, factor, ingredient,… …
35element — noun /ˈel.ɪ.mənt/ a) One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based. an element of doubt b) Any one of the simplest chemical substances… …
36essential — Synonyms and related words: ab ovo, austere, axiom, bare, bare necessities, basal, basic, basilar, bedrock, bench mark, brass tacks, call for, called for, capital, cardinal, cardinal point, center, central, chaste, chief, chief thing, climax,… …
37element — 1. A substance composed of atoms of only one kind, i.e., of identical atomic (proton) number, that therefore cannot be decomposed into two or more elements and that can lose its chemical properties only by union with some other e. or by a nuclear …
38element — Synonyms and related words: acid, acidity, addend, adjunct, agent, air, alkali, alkalinity, alloisomer, americium, anion, antacid, antecedents, antilogarithm, appurtenance, argument, article, aspect, astatine, atmosphere, atom, atomic particles,… …
39element — n. 1. simple body, uncompounded body, ultimate part. 2. Constituent, component, ingredient, constituent principle, component part. 3. Proper state, proper sphere, natural medium, vital air. 4. [In pl.] Rudiments, first steps or principles,… …
40essential — I. a. 1. Vital, necessary, requisite, indispensable, highly important. 2. Volatile, diffusible, pure, highly rectified. 3. (Med.) Idiopathic. II. n. [Usually in pl.] 1. Indispensable element, vital part, absolute requisite …
