Objective
In a microscope, the objective (also called the objective lens) is the lens nearest to the object being examined whereas the lens closest to the eye is termed the ocular (the eyepiece). The light microscope today is usually binocular (with one ocular for each eye) and has a turret bearing a selection of objective lens.
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1. The lens or lenses in the object end of the body tube of a microscope, by means of which the rays coming from the object examined are brought to a focus. SYN: object glass. 2. Viewing events or phenomena as they exist in the external world, impersonally, or in an unprejudiced way; open to observation by oneself and by others. Cf.:subjective. [L. ob- jicio, pp. -jectus, to throw before]
- achromatic o. an o. that is corrected for two colors chromatically, and one color spherically.
- apochromatic o. an o. in which chromatic aberration is corrected for three colors and spherical aberration is corrected for two.
- immersion o. a high power o. used with a drop of oil between the lens and the specimen on the slide, allowing a greater numerical aperture; similar lenses are available for use with water as the immersing liquid.

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ob·jec·tive əb-'jek-tiv, äb- adj
1) of, relating to, or being an object, phenomenon, or condition in the realm of sensible experience independent of individual thought and perceptible by all observers <\objective reality>
2) perceptible to persons other than the affected individual <an \objective symptom of disease> compare SUBJECTIVE (2b)
ob·jec·tive·ly adv
objective n
1) a lens or system of lenses that forms an image of an object
2) something toward which effort is directed

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n.
(in microscopy) the lens or system of lenses in a light microscope that is nearest to the object under examination and furthest from the eyepiece. In many types of microscope interchangeable objectives with different powers of magnification are provided.

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ob·jec·tive (ob-jekґtiv) [L. objectivus] 1. perceptible to the external senses. 2. a result for whose achievement an effort is made. 3. the lens or system of lenses in a microscope (or telescope) that is nearest to the object under examination.

Medical dictionary. 2011.

Synonyms:

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  • Objective — Ob*jec tive ([o^]b*j[e^]k t[i^]v), a. [Cf. F. objectif.] 1. Of or pertaining to an object. [1913 Webster] 2. (Metaph.) Of or pertaining to an object; contained in, or having the nature or position of, an object; outward; external; extrinsic; an… …   The Collaborative International Dictionary of English

  • Objective — may refer to: Objective (military), to achieve a final set of actions within a given military operation Objective pronoun, a pronoun as the target of a verb Objective (optics), an element in a camera or microscope Objectivity (philosophy)… …   Wikipedia

  • Objective — Ob*jec tive, n. 1. (Gram.) The objective case. [1913 Webster] 2. An {object glass}; called also {objective lens}. See under {Object}, n. [1913 Webster] 3. Same as {Objective point}, under {Objective}, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • objective — [əb jek′tiv, äbjek′tiv] adj. [ML objectivus] 1. of or having to do with a known or perceived object as distinguished from something existing only in the mind of the subject, or person thinking 2. being, or regarded as being, independent of the… …   English World dictionary

  • objective — objective, objectivity In the dispute between those who view sociology as actually or potentially a science, and those who advocate some other model of intellectual activity (such as textual interpretation, the sympathetic understanding… …   Dictionary of sociology

  • objective# — objective adj 1 *material, physical, corporeal, phenomenal, sensible Analogous words: external, outside, *outer, outward: tangible, palpable, *perceptible Antonyms: subjective 2 impartial, unbiased, dispassionate, uncolored, *fair, just,… …   New Dictionary of Synonyms

  • objective — I adjective actual, broad minded, candid, concrete, corporeal, desired, detached, disinterested, dispassionate, equitable, factual, fair, fair minded, impartial, impersonal, judicial, just, material, neutral, nonpartisan, nonsubjective, open… …   Law dictionary

  • objective — [adj] fair, impartial cold, cool, detached, disinterested, dispassionate, equitable, evenhanded, impersonal, judicial, just, like it is*, nondiscriminatory, nonpartisan, openminded*, straight, strictly business*, unbiased, uncolored, unemotional …   New thesaurus

  • objective — ► ADJECTIVE 1) not influenced by personal feelings or opinions. 2) not dependent on the mind for existence; actual. 3) Grammar relating to a case of nouns and pronouns used for the object of a transitive verb or a preposition. ► NOUN 1) a goal or …   English terms dictionary

  • objective — ob|jec|tive1 W3 [əbˈdʒektıv] n 1.) something that you are trying hard to achieve, especially in business or politics = ↑goal ▪ He vowed to achieve certain objectives before the end of his presidency. ▪ the best way to accomplish your objectives ▪ …   Dictionary of contemporary English

  • objective — ( mutual funds) The fund s investment strategy category as stated in the prospectus. There are more than 20 standardized categories. E.g. aggressive growth , balanced . Bloomberg Financial Dictionary * * * ▪ I. objective ob‧jec‧tive 1… …   Financial and business terms

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