What's the difference between child and urchin?

Child


Definition:

  • (n.) A son or a daughter; a male or female descendant, in the first degree; the immediate progeny of human parents; -- in law, legitimate offspring. Used also of animals and plants.
  • (n.) A descendant, however remote; -- used esp. in the plural; as, the children of Israel; the children of Edom.
  • (n.) One who, by character of practice, shows signs of relationship to, or of the influence of, another; one closely connected with a place, occupation, character, etc.; as, a child of God; a child of the devil; a child of disobedience; a child of toil; a child of the people.
  • (n.) A noble youth. See Childe.
  • (n.) A young person of either sex. esp. one between infancy and youth; hence, one who exhibits the characteristics of a very young person, as innocence, obedience, trustfulness, limited understanding, etc.
  • (n.) A female infant.
  • (v. i.) To give birth; to produce young.

Example Sentences:

  • (1) A 2.5-month-old child with cyanotic heart disease who required long-term PGE1 infusions; developed widespread periosteal reactions during the course of therapy.
  • (2) Child benefit has already been withdrawn from higher rate taxpayers.
  • (3) Unfortunately, due to confidentiality clauses that have been imposed on us by the Department of Immigration and Border Protection, we are unable to provide our full names and … titles … However, we believe the evidence that will be submitted will validate the statements that we are making in this submission.” The submission detailed specific allegations – including names and dates – of sexual abuse of child detainees, violence and bullying of children, suicide attempts by children and medical neglect.
  • (4) The proportion of teeth per child with calculus was approximately 8 percent for supragingival and 4 percent for subgingival calculus.
  • (5) In the past, the interpretation of the medical findings was hampered by a lack of knowledge of normal anatomy and genital flora in the nonabused prepubertal child.
  • (6) There were 101 unwanted pregnancies, and 1 child was born with intersexual genitals.
  • (7) Parents believed they should try to normalize their child's experiences, that interactions with health care professionals required negotiation and assertiveness, and that they needed some support person(s) outside of the family.
  • (8) After a due process hearing, the child was placed in a school for autistic children.
  • (9) By adjustment to the swaying movements of the horse, the child feels how to retain straightening alignment, symmetry and balance.
  • (10) 'The only way that child would have drowned in the bath is if you were holding her under the water.'
  • (11) After these two experimental years, a governmental institute for prevention of child abuse and neglect was organized.
  • (12) Discriminant analysis was performed with the fourth child in the family as the index case.
  • (13) The authors describe a case of expulsive choroidal effusion which occurred in the course of a fistulating operation in a child with Sturge-Weber syndrome.
  • (14) An age- and education-matched group of women with no family history of FXS was asked to predict the seriousness of problems they might encounter were they to bear a child with a handicapping condition.
  • (15) No case of oromandibular-limb abnormality was seen in the CVS groups, but 1 child in the AC group had aplasia of the right hand.
  • (16) The authors used a linear multivariate regression to evaluate the effects of distance from the highway, age and sex of the child, and housing condition.
  • (17) Child age was negatively correlated with mother's use of commands, reasoning, threats, and bribes, and positively correlated with maternal nondirectives, servings, and child compliance.
  • (18) The safe motherhood initiative demands an intersectoral, collaborative approach to gynecology, family planning, and child health in which midwifery is the key element.
  • (19) Because the HRG level is increased in Child A liver cirrhosis, we suggest that other mechanisms, other than simply a decreased synthetic capacity of the liver, contribute to the changes in HRG levels in patients with liver disease.
  • (20) A nine-year-old male child presented with a history of recurrent chest infections and breathlessness.

Urchin


Definition:

  • (n.) A hedgehog.
  • (n.) A sea urchin. See Sea urchin.
  • (n.) A mischievous elf supposed sometimes to take the form a hedgehog.
  • (n.) A pert or roguish child; -- now commonly used only of a boy.
  • (n.) One of a pair in a series of small card cylinders, arranged around a carding drum; -- so called from its fancied resemblance to the hedgehog.
  • (a.) Rough; pricking; piercing.

Example Sentences:

  • (1) CyIIIa.CAT) expression simultaneously in embryos bearing excess competitor regulatory DNA, we developed, and here describe, a new procedure for generating transgenic sea urchin embryos in which all of the cells in many embryos, and most in others, bear the exogenous DNA.
  • (2) An oligonucleosome 12-mer was reconstituted in the absence of linker histones, onto a DNA template consisting of 12 tandemly arranged 208-base pair fragments of the 5 S rRNA gene from the sea urchin Ly-techinus variegatus (Simpson, R. T., Thoma, F. S., and Burbaker, J. M. (1985) Cell 42, 799-808).
  • (3) 1c for structure), for continuous measurement of [Ca2+]i from fertilization through the first cleavage of individual eggs of the sea urchin Lytechinus pictus.
  • (4) The agglutination of the sea urchin spermatozoa was inhibited specifically by ceratain carbohydrates.
  • (5) The levels of different classes of mitochondrially encoded transcripts are developmentally regulated in sea urchin embryos, as a result of selection between mutually exclusive synthetic pathways.
  • (6) Antimicrobial activity of polyhydroxynaphthoquinones from sea urchins was studied.
  • (7) A special type of beta-turn structural motif has been proposed for this sequence, and it has been shown that a segment of the sea urchin sperm H1 N terminus, which has six repeats of the motif (S6 peptide), binds to DNA and competes with the DNA binding drug Hoechst 33258.
  • (8) The fertilization reaction of echinoderm eggs (Lytechinus pictus, a sea urchin, and Dendraster excentricus, a sand dollar) was followed with intracellular electrodes.
  • (9) Sperm-specific histone variants in the sea urchin Paracentrotus lividus are replaced early after fertilization with a specific embryonic set of histone variants.
  • (10) Spermidine is rapidly taken up and becomes bound to protein during the very early hours of sea urchin embryogenesis.
  • (11) The tandemly repeated genes were expressed at a higher rate in blastula than in gastrula stage relative to the single-copy gene, when the two genes were injected into sea urchin zygotes.
  • (12) The purine inhibits the detachment of the vitelline layer from the sea-urchin egg plasma membrane after fertilization and this effect leads to polyspermy.
  • (13) Microtubule assembly is required for the formation of the male and female pronuclei during mouse, but not sea urchin, fertilization.
  • (14) In situ hybridization of sea urchin (Psammechinus miliaris, Lytechinus pictus and Strongylocentrotus purpuratus) histone messenger RNA has been used to map complementary sequences on polytene chromosomes from Drosophila melanogaster.
  • (15) We have examined the relationship between the newly synthesized mRNA that enters polysomes in sea urchin embryos and the messengerlike RNA that enters the pool of ribosome-free ribonucleoprotein particles (free RNPs or informosomes).
  • (16) Individual oocytes of the sea urchin with diameters which ranged from 86 to 102% that of the average diameter for mature eggs from the same female were examined.
  • (17) Puncture wounds were cuased in 9 patients by sea urchin spines and 1 patient by a date palm thorn.
  • (18) A method based on the degradation by enzymes and nitrous acid of isotopically labelled glycosaminoglycans has been employed to study the synthesis of these compounds in normal, animalized and vegetalized sea urchin embryos.
  • (19) From these results, we conclude that USE 1 and perhaps USE 2 in the H2A modulator are upstream transcriptional elements that are recognized by trans-acting factors common to Xenopus and sea urchin.
  • (20) We have used an in vitro assay to characterize some of the motile properties of sea urchin egg kinesin.