(a.) Destitute of a backbone; having no vertebrae; of or pertaining to the Invertebrata.
(n.) One of the Invertebrata.
Example Sentences:
(1) The results suggest that normal development of some invertebrate neural pathways may be more dependent on experience during ontogeny than has previously been assumed.
(2) This result is in contrast to most other animals (ranging from invertebrates to mammals), in which sperm are generally motile for at least several hours.
(3) This invertebrate precipitin, Tridacnin, may be used as a marker for nearly two thirds of all asialo serum glycoproteins; A number of different cross-reactions with various other polysaccharides and galactans subdivides those neuraminidase-treated glycoproteins into several subgroups, indicating that the uncovered carbohydrate structures are not always completely identical.
(4) We compared the molecular nature of the rat brain opiate receptor with that of the invertebrate leech, Haemopis marmorata, and the protozoan, Tetrahymena, in order to examine the issue of apparent receptor heterogeneity with respect to biochemical structure.
(5) The ruthenium red method was also used on a number of marine invertebrate embryos and larvae, representing different phyla, to facilitate comparisons between their surface coats.
(6) Using an SDS gel electrophoresis method, connectin, very high molecular weight (approximately 10(6) dalton) protein, was detected in an SDS extract of whole tissues of various types of muscles of vertebrates and invertebrates.
(7) Thirty-five antisera to 20 vertebrate regulatory peptides and 1 invertebrate peptide (FMRFamide) were used to screen the worm for neuropeptide IR.
(8) Purification procedures that appear to be generally applicable to invertebrate MTs have only recently been developed and are described here.
(9) The over-all response of duck erythrocytes is considered as an example of "isosmotic intracellular regulation," a term used to describe a form of volume regulation common to euryhaline invertebrates which is achieved by adjusting the number of effective intracellular osmotic particles.
(10) The body wall muscle and the blood vessel muscle are compared with other muscle types described in invertebrates.
(11) Although neither protein bound to heparin, gelatin, hexosamine, or uronic acid-Sepharose resins, their affinity for an invertebrate proteoglycan, their roles in sponge cell adhesion, and their peripheral membrane protein natures suggest that they may represent early invertebrate analogs of cell-associated vertebrate extracellular matrix adhesion proteins, such as fibronectin or vitronectin, or else an entirely novel set of cell adhesion molecules.
(12) In organisms as diverse as bacteria, plants, invertebrates, and vertebrates, synthesis of these proteins is directly correlated with the acquisition of thermotolerance.
(13) Invertebrate systems have proved to be quite useful for the development of an understanding of some processes in the central nervous system (CNS).
(14) The amino acid composition of the ABRM calmodulin closely resembled that of other invertebrate calmodulins.
(15) Current thinking on fixed behaviors in invertebrates holds that they are generated by specialized neural circuits in the brain.
(16) In view of reports that the nerve fibers of the sea prawn conduct impulses more rapidly than other invertebrate nerves and look like myelinated vertebrate nerves in the light microscope, prawn nerve fibers were studied with the electron microscope.
(17) To test the hypothesis that inositol trisphosphate (InsP3) mediates adaptation and excitation in invertebrate photoreceptors, we measured its formation on a rapid time scale in squid retinas.
(18) The cellular and circuit properties of individual identified neurons in invertebrates can be readily studied; hence it is possible to determine how the complex properties of nerve cells function in the generation of behavior.
(19) These processes may be conserved in a wide range of invertebrates and vertebrates.
(20) The action of ocular screening pigments of vertebrates (melanins) as well as those of invertebrates (ommochromes) on lipid peroxidation has been studied.
Worm
Definition:
(n.) A creeping or a crawling animal of any kind or size, as a serpent, caterpillar, snail, or the like.
(n.) Any small creeping animal or reptile, either entirely without feet, or with very short ones, including a great variety of animals; as, an earthworm; the blindworm.
(n.) Any helminth; an entozoon.
(n.) Any annelid.
(n.) An insect larva.
(n.) Same as Vermes.
(n.) An internal tormentor; something that gnaws or afflicts one's mind with remorse.
(n.) A being debased and despised.
(n.) Anything spiral, vermiculated, or resembling a worm
(n.) The thread of a screw.
(n.) A spiral instrument or screw, often like a double corkscrew, used for drawing balls from firearms.
(n.) A certain muscular band in the tongue of some animals, as the dog; the lytta. See Lytta.
(n.) The condensing tube of a still, often curved and wound to economize space. See Illust. of Still.
(n.) A short revolving screw, the threads of which drive, or are driven by, a worm wheel by gearing into its teeth or cogs. See Illust. of Worm gearing, below.
(v. i.) To work slowly, gradually, and secretly.
(v. t.) To effect, remove, drive, draw, or the like, by slow and secret means; -- often followed by out.
(v. t.) To clean by means of a worm; to draw a wad or cartridge from, as a firearm. See Worm, n. 5 (b).
(n.) To cut the worm, or lytta, from under the tongue of, as a dog, for the purpose of checking a disposition to gnaw. The operation was formerly supposed to guard against canine madness.
(n.) To wind rope, yarn, or other material, spirally round, between the strands of, as a cable; to wind with spun yarn, as a small rope.
Example Sentences:
(1) Other filarial worms which are known to occur in the RSA are discussed.
(2) The drugs were moderately potent inhibitors of both E. electricus and C. elegans acetylcholinesterase but at concentrations too high to account for their abilities to contract cut worms.
(3) The sectioned worm tissues from each developmental stage were embedded in Lowicryl HM 20 medium, stained with infected serum IgG and protein A gold complex (particle size: 12 nm) and observed by electron microscopy.
(4) glp-4(bn2ts) mutant worms raised at the restrictive temperature contain approximately 12 germ nuclei, in contrast to the 700-1000 present in wild-type adults.
(5) Fluorescein isothiocyanate (FITC)-ricin exhibited binding to schistosomula and adult worms, but not to cercariae or to freshly transformed schistosomula.
(6) Sera from S. mansoni-infected patients with a high specificity for the diagnostic S. mansoni-antigen cross-reacted with a corresponding component also in S. japonicum worms.
(7) To understand mechanisms involved in sex-specific gene expression in Schistosoma mansoni, a cDNA (fs800) was isolated that hybridized to an 800 nucleotide mRNA present in high levels only in mature female worms.
(8) Three freeze-thaw cycles released a large proportion (50% to 60%) of the TCA-precipitable radioactivity from the worms.
(9) Antigen inhibition studies showed low and high levels of cross-reactivity with anti-worm and anti-egg antibodies, respectively, derived from both Chinese and Philippine patients.
(10) Only eosinophils adhered to 2 h newborn worms and only macrophages to 20 h ones.
(11) Worms had invaded the bile duct in 51 patients, the pancreatic duct in four and both ducts in four.
(12) The number of ovarian balls rises to about 6300 per worm, with the maximum being attained more rapidly in unfertilized than in fertilized females.
(13) Or perhaps the "mad cow"-fuelled beef war in the late 1990s, when France maintained its ban on British beef for three long years after the rest of the EU had lifted it, prompting the Sun to publish a special edition in French portraying then president Jacques Chirac as a worm.
(14) Three bulls selected for high faecal worm egg counts and three bulls selected for low faecal worm egg counts were mated to Africander-Hereford cross cows.
(15) Among 30 villagers who were treated, 4 (13.3%) passed this species with an average of 2.5 worms per infection.
(16) Successful tests were carried out on 84 farms and 68% of these had resistant worms present.
(17) A higher retention rate of intestinal adult worms was observed in hydrocortisone-treated mice.
(18) No evidence was obtained for the involvement of monoamine oxidases in the metabolism of 5-HT in these filarial worms.
(19) Radiocarbons from glucosamine and leucine were incorporated into tissue glycogen of female worms much less than glucose.
(20) The heads were examined for adult and larval meningeal worms (Parelaphostrongylus tenuis) by physical examination of the brain surfaces, and the Baermann technique, respectively, and for ear mites by examination of ear scrapings.