Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to luminal: veronal, Seconal, lumen


n. pl. lu·mens or lu·mi·na (-mə-nə)
1. Anatomy The inner open space or cavity of a tubular organ, as of a blood vessel or an intestine.
2. Biology The interior of a membrane-bound compartment or organelle in a cell.
3. Abbr. lm Physics The SI unit of luminous flux, equal to the amount of light per unit time passing through a solid angle of one steradian from a light source of one candela intensity radiating equally in all directions. See Table at measurement.

[Latin lūmen, an opening, light; see leuk- in Indo-European roots.]

lu′men·al, lu′min·al adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Luminal - a long-acting barbiturate used as a sedative
barbiturate - organic compound having powerful soporific effect; overdose can be fatal


a. luminal, rel. a la luz de un conducto.
References in periodicals archive ?
Mill Division 20 W LED Tube Ligbt IP 66, 25 W LED Street Light Luniinaires with high power LED as light source,IP 66, 45/48 W LED Street Light Luniinaires with high power LED as light Source,IP 66, 60 W LED Street Light Luniinaires ,with high power LED as light source,Surface mounted sleek panel LED Luminal res.
In December 2017 the CHMP of the European Medicines Agency (EMA) adopted a positive opinion recommending marketing authorisation for Cx601 as a treatment for complex perianal fistulas in patients with non-active/mildly active luminal Crohn's disease, who have had an inadequate response to at least one conventional or biologic therapy.
The mammary gland comprises two main cellular subtypes: the basal cells and luminal cells.
10 The molecular classification of breast cancer introduced five main subtypes, including luminal A, luminal B, HER2-type, basal-like, and normal breast-like tumours.
Methods: We reviewed the data from January 2008 to December 2014 for cases with Luminal B Human Epidermal Growth Factor Receptor 2 (HER2)-negative breast cancer in our center.
Tumors were divided into different molecular subtypes, luminal A, luminal B human epidermal growth factor receptor 2 (HER 2) was negative, luminal B (HER 2 positive), HER 2 over expressed and triple negative.
We shall consider the basic mechanics of luminal wave systems, i.
e) Statistical analysis: Paired t-test was applied to evaluate changes in the luminal diameter at the anastomotic site; furthermore, assessment of significance in suturing time between groups A and B was done using a simple t-test.
Tim Ritter, medical director, Luminal Research TDDC.
The pioneering works on molecular classification (MC) for IBC by Perou (13) and Sorlie et al (14,15) with global gene expression profiling (GEP) for IBC identified 5 intrinsic subtypes of IBC: luminal A, luminal B, normal breast-like, HER2-enriched, and basal-like, with differing clinical outcomes and responses to neoadjuvant chemotherapy, (16) a bimodal age distribution, (17) and different risk factors.
Estos estudios determinaron que existian al menos cuatro clases moleculares de cancer de mama denominadas tipo luminal, tipo basal, tipo parecido a mama normal y tipo HER2 (receptor del factor de crecimiento epidermico 2) positivo.