a chemical formula indicating the elements of a compound and their relative proportions, as (CH 2 O) n .
a chemical formula indicating the proportion of each element present in a molecule: C6H12O6 is the molecular formula of sucrose whereas CH2O is its empirical formula Compare molecular formula, structural formula
a formula or expression obtained from experimental data rather than theory
empirical formula n.
A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.
A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements. The empirical formula of a compound may be simpler than its molecular formula, which is a multiple of the empirical formula. For example, glucose has the molecular formula C6H12O6 but the empirical formula CH2O. Compare molecular formula, structural formula.
[em-pir-i-kuh l] /ɛmˈpɪr ɪ kəl/ adjective 1. derived from or guided by experience or experiment. 2. depending upon experience or observation alone, without using scientific method or theory, especially as in medicine. 3. provable or verifiable by experience or experiment. /ɛmˈpɪrɪkəl/ adjective 1. derived from or relating to experiment and observation rather than theory 2. […]
[em-pir-uh-siz-uh m] /ɛmˈpɪr əˌsɪz əm/ noun 1. method or practice. 2. Philosophy. the doctrine that all knowledge is derived from sense experience. Compare (def 2). 3. undue reliance upon experience, as in medicine; quackery. 4. an conclusion. /ɛmˈpɪrɪˌsɪzəm/ noun 1. (philosophy) the doctrine that all knowledge of matters of fact derives from experience and that […]
- Empiric risk
empiric risk n. Risk that is based only on empirical evidence, not on formal theory or conjecture.
[em-pir-ik] /ɛmˈpɪr ɪk/ noun 1. a person who follows an method. 2. a quack; charlatan. adjective 3. . /ɛmˈpɪrɪk/ noun 1. a person who relies on empirical methods 2. a medical quack; charlatan adjective 3. a variant of empirical adj. c.1600, from Latin empiricus “a physician guided by experience,” from Greek empeirikos “experienced,” from empeiria […]