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1. Of, belonging to, or restricted to a limited area or neighborhood; local.
2. Relating to or being a local road, especially one in ancient Britain.
3. Mineralogy Approximating, resembling, or taking the place of a fundamental crystalline form or face.
4. Chemistry Of or relating to the consecutive positions on a ring or chain of carbon atoms.

[Latin vīcīnālis, from vīcīnus, neighboring; see vicinity.]


1. neighbouring
2. (Human Geography) (esp of roads) of or relating to a locality or neighbourhood
3. (Chemistry) chem relating to or designating two adjacent atoms to which groups are attached in a chain
[C17: from Latin vīcīnālis nearby, from vīcīnus, from vīcus a neighbourhood]


(ˈvɪs ə nl)

1. of, pertaining to, or belonging to a neighborhood or district.
2. adjacent.
3. noting a crystal plane whose position varies very little from that of a fundamental plane of the form.
[1615–25; < Latin vīcīnālis, derivative of vīcīn(us) near; see vicinity]


, vicinity - Vicinal, from Latin vicus, "group of houses," means "of or pertaining to a neighborhood"—hence, vicinity.
See also related terms for houses.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.vicinal - belonging to or limited to a vicinity
References in periodicals archive ?
The COSY spectrum shows that the protons at [[delta].sub.H] 3.27 and 3.32 are vicinally coupled and the HMQC show similar carbon resonance positions.
His work makes even clearer than earlier studies how certain similarities shared by associations, synagogues, and Christian groups should not be allowed to obscure their strategically different activities, aims, social networks, and "responses to the world." Judean and Christian groups, like associations, did not isolate themselves vicinally or "withdraw" from the larger society--a notion Harland erroneously attributes to scholars employing sectarian theory.
However, not all compounds with vicinally unsubstituted positions declined; the relative proportions of PCBs 105, 134, 137, 138, 156, and 157 (all of which have this structure) increased between 1981 and 1991.