(n.) Any jumping, orthopterous insect, of the families Acrididae and Locustidae. The species and genera are very numerous. The former family includes the Western grasshopper or locust (Caloptenus spretus), noted for the great extent of its ravages in the region beyond the Mississippi. In the Eastern United States the red-legged (Caloptenus femurrubrum and C. atlanis) are closely related species, but their ravages are less important. They are closely related to the migratory locusts of the Old World. See Locust.
(n.) In ordinary square or upright pianos of London make, the escapement lever or jack, so made that it can be taken out and replaced with the key; -- called also the hopper.
Example Sentences:
(1) For example, where 2 longitudinal tracts are pioneered independently in grasshopper, only one is formed in Drosophila.
(3) The silver staining technique was employed to locate Nucleolar Organiser Regions (NORs) in six species of grasshoppers viz.
(4) The morphological characteristics of five types of local spiking interneurons in the metathoracic ganglion of the acridid grasshopper Omocestus viridulus L. have been revealed by intracellular injection of the fluorescent dye Lucifer Yellow.
(5) In grasshoppers the auditory receptors develop by epithelial invagination of the body wall ectoderm in the first abdominal segment.
(6) We also show, by indirect immunofluorescence studies, that the 60-kDa protein is antigenically conserved in the germ cells of grasshopper, rooster, and frog and in plant meiocytes.
(7) The employment of certain DNA-specific fluorescent stains on unbanded and C-banded chromosomes of two species of grasshoppers shows remarkable differences among C-heterochromatic regions supposed to be similar in their base pair composition, according to their response to the standard fluorescence techniques.
(8) The Ti1 pioneer neurons arise at the distal tip of the metathoracic leg in the grasshopper embryo, and are the first neurons in the limb bud to extend axons to the central nervous system (C. M. Bate (1976) Nature (London) 260, 54-56; H. Keshishian (1980) Dev.
(9) Some 80-90 adult neurons constitute the dorsal unpaired median (DUM) group of the grasshopper metathoracic ganglion.
(10) The effects of four concentrations of colchicine (2.5 x 10(-7), x 10(-5), x 10(-3), and x 10(-2)M) on the cell cycle of grasshopper neuroblasts have been determined by direct observations on living cells.
(11) Gaulden reported a novel and unexpected mitomycin C (MMC) effect, namely a pronounced retardation of very late prophase and loss of chromosome orientation in neuroblasts of the grasshopper Chortophaga viridifasciate.
(12) Annulin, named for its annular expression in developing limb buds, is a approximately 100 kDa membrane-associated protein that is expressed in a complex and changing pattern during grasshopper embryogenesis.
(13) Finances can be insecure, she admits, and there is some concern about the government’s move to raise “free” childcare for three- and four-year-olds from 15 hours per week to 30 since Grasshoppers (like most private nurseries) makes a loss on the government-funded hours.
(14) The effect of implanted active corpora allata on the reproductive diapause in adult females of grasshopper, Tetrix undulata (Sow.)
(15) Creative solutions like co-production can be part of the picture to solve our childcare challenges, but can’t be a substitute for the major reforms to our childcare policy and funding needed to provide the volume of high-quality, affordable places that parents need.” In terms of the practicalities for working parents, Schofield adds that “most parents who choose childcare do work and may not be time-rich in this way.” Facebook Twitter Pinterest Bruce, who has worked at Grasshoppers for four years, puts his acting background to good use during storytelling time.
(16) A quantitative analysis of the alterations of constitutive heterochromatin in eukaryotic chromosomal evolution was attempted using the accumulated C-banding data available for mammals, amphibians, fish, ants, grasshoppers, and plants.
(17) Motor neurons of the main muscles of the hind legs and the hind wings of the grasshopper are distributed into eight anatomical groups within each half of a bilaterally symmetrical segmental ganglion.
(18) I cut through the spindle of demembranated grasshopper spermatocytes between the chromosomes and one pole and swept the polar region away, removing a portion of the would-be traction fiber.
(19) Additionally, the intersegmental (IS) nerve is pioneered by a different neuron in Drosophila (aCC) than in the grasshopper (U1) because the smaller Drosophila CNS places the IS nerve within filopodial reach of the aCC soma, while in the grasshopper it is not.
(20) Combined high-voltage electron-microscopic and electrophysiological studies strongly suggest that cilia play an active role in sensory transduction in the grasshopper proximal femoral chordotonal organ (FCO) a ciliated mechanoreceptor.
Katydid
Definition:
(n.) A large, green, arboreal, orthopterous insect (Cyrtophyllus concavus) of the family Locustidae, common in the United States. The males have stridulating organs at the bases of the front wings. During the summer and autumn, in the evening, the males make a peculiar, loud, shrill sound, resembling the combination Katy-did, whence the name.
Example Sentences:
(1) The wing muscles used in singing by the katydid, Neoconocephalus robustus, are extraordinarily fast.
(2) Singing muscles of the katydid, Neoconocephalus robustus (Insecta, Tettigoniidae) are neurogenic, yet perform at contraction-relaxation frequencies as high as 212 Hz (Josephson and Halverson, '71).
(3) The twitch duration of mesothoracic wing muscles of the male katydid Neoconocephalus robustus (Insecta; Orthoptera; Tettigoniidae) decreases rapidly within the first 5 days of adulthood, to about half of its value in newly molted adults.
(4) The singing muscles of the katydid Neoconocephalus robustus develop adult ultrastructure late in the last nymphal instar and during the first few days of adult life.
(5) Therefore, denervation in newly molted adult male katydids interrupts a developmental program for the acquisition of adult contraction kinetics.
(6) In males of the katydid Neoconocephalus robustus, mesothoracic wings are used in flight (wing stroke frequence = 20 Hz) and stridulation (200 Hz), while the metathoracic wings are used in flight alone.