(n.) The larval state of a butterfly or any lepidopterous insect; sometimes, but less commonly, the larval state of other insects, as the sawflies, which are also called false caterpillars. The true caterpillars have three pairs of true legs, and several pairs of abdominal fleshy legs (prolegs) armed with hooks. Some are hairy, others naked. They usually feed on leaves, fruit, and succulent vegetables, being often very destructive, Many of them are popularly called worms, as the cutworm, cankerworm, army worm, cotton worm, silkworm.
(n.) A plant of the genus Scorpiurus, with pods resembling caterpillars.
Example Sentences:
(1) "I am aware of the toxic nature of the caterpillars, but also aware that previous control methods have reduced the number of caterpillar nests from several dozen in 2011 to only three last year.
(2) Muscle fibers from fourth and fifth instar caterpillars were examined with scanning and thin section electron microscopy.
(3) The Very Hungry Caterpillar & Friends (£2.99) The Very Hungry Caterpillar & Friends is a reworking of Eric Carle’s classic book and illustrations, in the form of a digital “pop-up app” modelled after printed pop-up books.
(4) "It may be that thistle-cutting or spraying is unnecessary this summer because the caterpillars will defoliate them for you."
(5) An apparent circadian feeding pattern appeared on day 2 in the sham-operated caterpillars.
(6) Insect venom is likely injected into the skin through specialized caterpillar hairs when contact occurs with the insect (or vegetation laden with insect debris).
(7) Pine processionary moth (Thaumetopoea pityocampa) Processional pine caterpillar tent, near Benimaurell, Alicante Province, Comunidad Valenciana, Spain.
(8) The CAT system assures access for Caterpillar employees and their families to a selection of qualified surgeons, while achieving cost savings through improvements in processing of surgical claims and negotiation of selected fees.
(9) Bacterial luciferase, derived from a fusion of the luxA and luxB genes of Vibrio harveyi, has been expressed at very high levels in caterpillars and insect cells.
(10) The main components of the diets were fish, lactose free milk, caseinate, partial hydrolasate of albumin, fermented corn and soya (Soy-Ogi), medium-chain triglycerides, rice and the local foods manioc, peanuts and caterpillars.
(11) When else am I going to try fried caterpillar?” she wondered.
(12) The junctional structures present between the midgut cells of 3 lepidopteran caterpillars have been examined using freeze-etching, conventional staining and lanthanum tracer techniques.
(13) Insect juvenile hormones are metabolized in numerous species of caterpillars by low abundance, highly specific esterases.
(14) But Oates thinks the common blue should be doing better; its food plant, bird’s-foot-trefoil , will grow in gently cut garden lawns, its caterpillars can also feed on agricultural clovers in “improved” grassland.
(15) You can throw tarts at the Queen of Hearts, help the Caterpillar smoke his hookah pipe, make Alice grow as big as a house and then shrink again.
(16) The cell extracts from both clones were toxic to caterpillars.
(17) The changes in numbers of giant forms in the development course of populations in the caterpillars, pupae and imagos body of both species were studied.
(18) The principal locomotory appendages of the Manduca sexta caterpillar, the prolegs, are present on the third through sixth abdominal segments (anal prolegs located on the terminal segment were not included in this study).
(19) Oak processionary moth caterpillars cover a tree trunk.
(20) Two of the farms had army caterpillar (Mythimna convecta) infestations.
Metamorphism
Definition:
(n.) The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc., as in the change of sedimentary limestone to marble.
Example Sentences:
(1) Quantitative and morphological data were obtained on developing olfactory axons in the African clawed frog, Xenopus laevis, during late premetamorphosis (stages 48-54), prometamorphosis (stages 55-57), and halfway through metamorphic climax (stages 58-62).
(2) (1) Control tadpoles did not undergo metamorphic change at any of the temperatures tested.
(3) There was a clear asynchrony in innervation, with projections to some terminal zones appearing before projections to others; projections to all terminal zones were present by late metamorphic stages.
(4) The general nerve terminal morphology and pattern of accumulation of acetylcholine receptors at cutaneous pectoris neuromuscular junctions were similar to those of the adult throughout metamorphic climax except that they still contained more than one motor axon.
(5) In contrast, tadpoles allowed to survive up to 6 months showed no loss of motoneurons if they did not enter metamorphic climax.
(6) The association becomes looser at the metamorphic stage and, occasionally, small breaks in the basement membrane are seen.
(7) Large adult animals have statoconia larger than those in early post-metamorphic animals which have just started producing multiple stones.
(8) The possible significance of decline in serum T4 levels to the metamorphic event in lamprey is discussed.
(9) The characteristics of the nuclear T3 receptors present in red blood cells (RBCs) of Rana catesbeiana tadpoles undergoing metamorphic climax have been investigated with a T3 saturation technique.
(10) The inhibition of unusually high endogenous corticosteroid levels in metamorphic larvae with metyrapone restores suppressor function.
(11) The retinotectal connexions of double nasal (NN), double temporal (TT) and double ventral (VV) eyes in juvenile Xenopus were mapped after post-metamorphic removal of the rostral, caudal, medial or lateral tectal halves with the subsequent cutting of the optic nerve of the operated eye.
(12) However, unlike the crossed fibers of the pre-metamorphic dermis, there is no preferred orientation to the fibers in either layer of the post-metamorphic dermis.
(13) Using selected cDNAs, RNA dot blot analysis of liver mRNA from tadpoles at different stages of metamorphosis showed that the level of one thyroid hormone-enhanced mRNA increased during late prometamorphosis and metamorphic climax.
(14) This also permitted the authors to note the absence of any myelofibrosis or metamorphic neo-osteogenesis.
(15) Coal dust of the IV stage of metamorphism was found to have more marked fibrogenic properties.
(16) The post-hatching development can be divided into four phases: planktonic, metamorphic, juvenile, and adult.
(17) They manifested themselves in disorders of the mitotic regimen and intercellular interactions, in atypical proliferations and primary glandular metamorphism of regenerating cells.
(18) Thyroids were taken from subjects representing metamorphic stages I (premetamorphic larvae), II (onset of climax), and VII (completion of gill resorption), as well as from captivity control larvae.
(19) (2) When tadpoles were kept in thyroxine solutions at 5 degrees, there were no changes in developmental morphology, and tadpoles kept at 18 and 20 degrees showed significant metamorphic changes in 5 to 6 days, but there was a high mortality at the higher T4 concentrations.
(20) The result is that four factors metamorphic rock, zinc, copper, chromium are suspected factors.