(n.) Any fresh-water fish of the genus Perca and of several other allied genera of the family Percidae, as the common American or yellow perch (Perca flavescens, / Americana), and the European perch (P. fluviatilis).
(n.) Any one of numerous species of spiny-finned fishes belonging to the Percidae, Serranidae, and related families, and resembling, more or less, the true perches.
(n.) A pole; a long staff; a rod; esp., a pole or other support for fowls to roost on or to rest on; a roost; figuratively, any elevated resting place or seat.
(n.) A measure of length containing five and a half yards; a rod, or pole.
(n.) In land or square measure: A square rod; the 160th part of an acre.
(n.) In solid measure: A mass 16/ feet long, 1 foot in height, and 1/ feet in breadth, or 24/ cubic feet (in local use, from 22 to 25 cubic feet); -- used in measuring stonework.
(n.) A pole connecting the fore gear and hind gear of a spring carriage; a reach.
(v. i.) To alight or settle, as a bird; to sit or roost.
(v. t.) To place or to set on, or as on, a perch.
(v. t.) To occupy as a perch.
Example Sentences:
(1) A sensitive radioimmunoassay (RIA) for the measurement of metallothionein (MT) from perch (Perca fluviatilis) has been developed.
(2) • earthseasky.org North Zakynthos Potamitis Brothers, North Zakynthos Where to stay: Potamitis Brothers The brothers run boat trips (see below), but also own some rather special accommodation perched on the cliffs of Cape Skinari on the northern tip of Zakynthos.
(3) We tested 1,145 isolates from fresh and spoiling irradiated (0.0, 0.3, and 0.6 Mrad) yellow perch fillets for proteolytic activity, by the use of both media.
(4) In order to determine the most suitable cage environment for the squirrel monkey, a series of studies were carried out to compare various perch materials and cage configurations.
(5) Peering out from his Kremlin perch, Putin sees a European continent divided between wealthy and poor countries, between north and south, and senses an opportunity.
(6) Just a whisper between us, its about time some of the old guard got a hoot under their perch.
(7) Does he fancy winning the league again & knock Liverpool right off their perch?"
(8) Only a slight induction in monooxygenase activities was seen in perch caught near the oil spill 4 months after the accident.
(9) Those who remember the Two Davids of the 1987 SDP-Liberal Alliance will recall the exquisite agony only too well, cruelly captured by the Spitting Image puppet of little Steel perched in big Owen's pocket.
(10) Kerry McQuade whose home perched high up on Blenheim Street avoided the worst effects, said: "We had two hours of a torrential downpour, followed by continual rain, from lunchtime.
(11) The same phenomenon was observed for the perch and Crusian carp, with low nitrate concentrations, while with higher nitrate concentrations, the uptake levels were again increased.
(12) The rest of the week he drives to other city centres and commercial sites, with Emu sitting on a perch in a large wooden box in the back of the van.
(13) The separation of two isoforms of rainbow trout (Salmo gairdneri) metallothionein was possible by DEAE-Sephadex A-25 chromatography, while only one form of perch (Perca fluviatilis) metallothionein was obtained with this method.
(14) Lines of Syrian army troops circle Qerdaha, adding an additional defence to the natural protection offered by the mountain it perches on, overlooking Latakia.
(15) Cells of the gas gland of the perch Perca fluviatilis L., stimulated to increased generation of gas by the repeated emptying of the swim-bladder, were examined in the electron microscope.
(16) The total lipid content in the muscle of perch (Perca fluviatilis) and vendace (Coregonus albula) was less than 50% of that in rainbow trout and a seasonal variation was clear only in vendace.
(17) Perched in a grove of poplars and with prayer flags stretching away on all sides, Muktinath is Nepal's second-most sacred site for Hindus after Pashupatinath , which in comparison lies rather forlornly at the end of Kathmandu's international airport runway.
(18) Therefore we suggest that this purified form of cytochrome P-450 is a BNF-induced form in perch and that it is closely related to the gene subfamily cytochrome P-450 IA1.
(19) The Five senior programme controller, Chris Shaw, said: "Ten years on from the famous perch people are still obsessing with soft furnishings and the desk.
(20) The fortress-like villages perched on rocky mountaintops we saw when we visited the north of the country are reminders that Yemen has constantly been invaded, or otherwise meddled with, by outsiders, from the Turks onwards.
Spiny
Definition:
(a.) Full of spines; thorny; as, a spiny tree.
(a.) Like a spine in shape; slender.
(a.) Fig.: Abounding with difficulties or annoyances.
(n.) See Spinny.
Example Sentences:
(1) These results suggest that: (1) catecholaminergic (mainly dopaminergic) and prefrontal cortical terminals in the nucleus accumbens septi dually synapse on common spiny neurons; and (2) dopaminergic neurons in the ventral tegmental area receive monosynaptic input from prefrontal cortical afferents.
(2) The responses of a population of 30 olfactory receptor cells from spiny lobsters to 8 behaviorally relevant complex types of stimuli at 0.005, 0.05 and 0.5 mM were analyzed using multidimensional scaling to evaluate their potential for coding quality and intensity.
(3) Extracellular responses to complex biologically relevant stimuli were recorded from 30 primary olfactory cells from excised antennules of spiny lobsters.
(4) Earlier studies identified purinergic chemoreceptors in the olfactory organ of the spiny lobster, Panulirus argus.
(5) We speculate that in the adult neostriatum, the protein may be important in the remodeling of synapses onto medium spiny neurons that involve, in part, the corticostriatal pathway.
(6) Tissue from the digitiform rectal gland of the spiny dogfish, Squalus acanthias, was fixed briefly by formaldehyde perfusion and studied for the specificity and localization of p-nitrophenyl phosphatase (NPP'ase) activity.
(7) Type 2 multipolar cells are large neurons endowed with numerous primary spiny dendrites constituting a wide round dendritic field and with a thick axon.
(8) Spiny seahorse lives among a rare marine plant called eelgrass, which only grows in shallow sheltered seas in south-west England.
(9) The axon of the spiny type II neuron is long and has collaterals which are poorly arborized in comparison to those of spiny type I cells.
(10) Neurons of medium size with spine-rich dendrites (spiny type I) are the most frequent type.
(11) When taken together these cases show that just over 50% of the degenerating terminals are presynaptic to spiny appendages and are located within the synaptic clusters (glomeruli) described previously (King, '76).
(12) The external surface of the hypostome possesses cnidocils, possibly sensory hairs, and small spiny protrusions surrounding the mouth; the internal surface has cylindrical microvilli, free flagella and adherent flagella.
(13) Finally, they are at variance with the classical concept which subdivides cortical neurons into projection neurons (pyramidal and spiny stellate) and interneurons (non-pyramidal, local circuit neurons).
(14) Leishmania braziliensis panamensis has been isolated in culture from one spiny-pocket mouse (Heteromys dermarestianus) out of 43 examined, proving that rodents of this genus can be reservoirs of Leishmania of the braziliensis complex as well as of mexicana in Latin America.
(15) Several types of NPY-containing neurons can be distinguished by their laminar location, by the size of their perikarya, and by the size, shape, and pattern of ramification of their processes: 1) layer I small local circuit neurons; 2) layer II granule cells; 3) aspiny stellate cells located in layers II-III and V-VI, with long, slender dendrites; 4) sparsely spiny stellate cells; 5) aspiny stellate cells with long, horizontally oriented dendrites, whose cell body is situated in layer VI; 6) Martinotti cells in areas 9, 7, and 24; and 7) multipolar neurons situated in the white matter subjacent to the cortical gray.
(16) The naturally occurring dynamics of presynaptic axon terminals were investigated in the dentate gyrus and stratum lucidum of the spiny mouse (Acomys cahirinus) during maturation, adulthood and aging.
(17) Light and electron microscopy showed intense and extensive labeling of immunoreactive calbindin-D28k in the cell bodies, dendrites, and spines of medium-sized neostriatal spiny neurons and in their axon terminals which end in the globus pallidus.
(18) The SFGS was seen to contain pyramidal neurons with spiny dendrites in the SM, together with fusiform, multipolar and horizontal neurons.
(19) Spiny extrusions are present on many of the neurons, arranged either as varicosities giving a rosary feature or clumped in small groups over the dendritic processes; these are absent at the level of the soma.
(20) This is a report of experiments which provide evidence in support of the existence of an electric sense in the echidna, or spiny anteater Tachyglossus aculeatus.