What's the difference between main and mainsheet?

Main

Definition:

(n.) A hand or match at dice.
(n.) A stake played for at dice.
(n.) The largest throw in a match at dice; a throw at dice within given limits, as in the game of hazard.
(n.) A match at cockfighting.
(n.) A main-hamper.
(v.) Strength; force; might; violent effort.
(v.) The chief or principal part; the main or most important thing.
(v.) The great sea, as distinguished from an arm, bay, etc. ; the high sea; the ocean.
(v.) The continent, as distinguished from an island; the mainland.
(v.) principal duct or pipe, as distinguished from lesser ones; esp. (Engin.), a principal pipe leading to or from a reservoir; as, a fire main.
(a.) Very or extremely strong.
(a.) Vast; huge.
(a.) Unqualified; absolute; entire; sheer.
(a.) Principal; chief; first in size, rank, importance, etc.
(a.) Important; necessary.
(a.) Very; extremely; as, main heavy.

Example Sentences:

(1) In conclusion, the efficacy of free tissue transfer in the treatment of osteomyelitis is geared mainly at enabling the surgeon to perform a wide radical debridement of infected and nonviable soft tissue and bone.
(2) Aggregation was more frequent in low-osmolal media: mainly rouleaux were formed in ioxaglate but irregular aggregates in non-ionic media.
(3) The main clinical features pertaining to the concept of the "psycho-organic syndrome" (POS) were investigated in a sample of children who suffered from severe craniocerebral trauma.
(4) Squadron Leader Kevin Harris, commander of the Merlins at Camp Bastion, the main British base in Helmand, praised the crews, adding: "The Merlins will undergo an extensive programme of maintenance and cleaning before being packed up, ensuring they return to the UK in good order."
(5) The main finding of this study is that diabetic adolescents with a high erythrocyte Na,Li countertransport rate have an arterial pressure significantly higher than patients with normal Na,Li countertransport fluxes.
(6) We also show that the gene of the main capsid protein is expressed from its own promoter in an Escherichia coli strain.
(7) In schizophrenic patients the density of dopamine uptake sites in the basal ganglia was slightly reduced, mainly in the middle third of putamen.
(8) One of the main users is coastal planning organizations and conservation organizations that are working on coral reefs.
(9) Immunofluorescence analysis of Pr-28 antigen showed that the antigen was localized mainly in perinuclear cytoplasm.
(10) The main result of the correspondence analysis is a geometric map of this relationship showing how the relative frequencies of headache types change with age.
(11) Myocardial ischaemia was induced in perfused rabbit hearts by ligating the left main coronary artery.
(12) Thus, human bronchial epithelial cells can express the IL-8 gene, with expression in response to the inflammatory mediator TNF regulated mainly at the transcriptional level, and with elements within the 5'-flanking region of the gene that are directly or indirectly modulated by the TNF signal.
(13) Statistically significant differences were found mainly in the randomized trial, where during the first and second years, respectively, adenoidectomy subjects had 47% and 37% less time with otitis media than control subjects and 28% and 35% fewer suppurative (acute) episodes than control subjects.
(14) One of the main components was confirmed to be caffeic acid which had inhibitory effect on renal failure in mice by Ac1-P.
(15) In four main regions the conservation varied from 83-91% while in the remaining regions the homology dropped to between 56-62%.
(16) In the caudal spinal trigeminal nucleus (Vc), the collaterals of one half of the periodontium afferent fibers terminated mainly in lamina V at the rostral and middle levels of Vc.
(17) Loratadine has one main metabolite, descarbethoxyloratadine, which is four times more active than the parent drug.
(18) The structures of 1 and 2 were established mainly on the basis of nmr spectroscopic data.
(19) The main clinical symptom was pain, usually sciatica, while neurological symptoms were less common than they are in adults.
(20) Possibilities to achieve this both in the curative and the preventive field are restricted mainly due to the insufficient knowledge of their etiopathogenesis.