What's the difference between invade and penetrate?

Invade


Definition:

  • (v. t.) To go into or upon; to pass within the confines of; to enter; -- used of forcible or rude ingress.
  • (v. t.) To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great Britain.
  • (v. t.) To attack; to infringe; to encroach on; to violate; as, the king invaded the rights of the people.
  • (v. t.) To grow or spread over; to affect injuriously and progressively; as, gangrene invades healthy tissue.
  • (v. i.) To make an invasion.

Example Sentences:

  • (1) Ukip and the Greens are beneficiaries of this new political reality – as, arguably, is the SNP as it prepares to invade Labour’s heartland in Scotland next May.
  • (2) In cancer of the pancreas head, cancer cells could invade the portal vein and perineural space of the celiac plexus, and metastasize to regional lymph nodes around the celiac axis.
  • (3) It is apparent that in the development of reactive arthritis the patient fails in his first line of defence against the invading microorganism.
  • (4) All three parasite lines required sialic acid for optimal invasion, but Thai-2 parasites cultured in Tn erythrocytes invaded neuraminidase-treated erythrocytes with 45% efficiency whereas Camp parasites invaded neuraminidase-treated erythrocytes with less than 10% efficiency.
  • (5) The conclusion is that AIDS has invaded Taiwan, but the prevalence of the HIV infection is presently low.
  • (6) They have similar axon trajectories into the thoracic ganglia, where they invade functionally related neuropils.
  • (7) Worms had invaded the bile duct in 51 patients, the pancreatic duct in four and both ducts in four.
  • (8) Dictated by underlying physicochemical constraints, deceived at times by the lulling tones of the siren entropy, and constantly vulnerable to the vagaries of other more pervasive forms of biological networking and information transfer encoded in the genes of virus and invading microorganisms, protein biorecognition in higher life forms, and particularly in mammals, represents the finely tuned molecular avenues for the genome to transfer its information to the next generation.
  • (9) Survival rates after curative gastrectomy for advanced gastric cancer among 238 patients in whom the cancer was invading the serosa were compared with 283 patients without serosal invasion.
  • (10) The immune system has evolved to protect an organism from the pathogens that invade it but the effector mechanisms involved in mediating this protection are potentially lethal to the host itself.
  • (11) In this report, it will be stressed that when clival chordoma invades intradually, subtemporal approach will be most favorable, and metrizamide CT cisternography is one of the useful diagnostic procedures of retroclival mass.
  • (12) On 21 August 1968, armies of five Warsaw Pact countries – the Soviet Union, Poland, Hungary, Bulgaria and East Germany – invaded Czechoslovakia to crush democratic reforms known as the Prague spring.
  • (13) He had undergone pelvic exenteration with the ureterostomy for rectal cancer invading the bladder five months previously and retrograde ureteric catheters were inserted bilaterally into the ureters.
  • (14) The Sunni, driven from power and office by the invaders, were unwilling to accept their newly diminished status.
  • (15) Pterygia, triangular sheets of fibrovascular tissue that invade the cornea, have recurrence rates of 30% to 50% with currently available surgical procedures.
  • (16) Infections of Leishmania mexicana in cultured normal mouse peritoneal macrophages show different morphological features depending on whether the parasites invade as promastigote or amastigote forms.
  • (17) The interstitium between alveoli is invaded with lymphocytes, macrophages, plasma cells and fibroblasts.
  • (18) The hypoxic fraction increased dramatically when these tumours invaded the subcutaneous tissues, or when tumours were implanted subcutaneously (TCD50 greater than 5,544 rad).
  • (19) "Russia has invaded a sovereign neighbouring state and threatens a democratic government elected by its people.
  • (20) This report presents a patient with a tumor of the splenic flexure invading the diaphragm, greater curvature of the stomach, splenic hilum, and tail of the pancreas.

Penetrate


Definition:

  • (v. t.) To enter into; to make way into the interior of; to effect an entrance into; to pierce; as, light penetrates darkness.
  • (v. t.) To affect profoundly through the senses or feelings; to touch with feeling; to make sensible; to move deeply; as, to penetrate one's heart with pity.
  • (v. t.) To pierce into by the mind; to arrive at the inner contents or meaning of, as of a mysterious or difficult subject; to comprehend; to understand.
  • (v. i.) To pass; to make way; to pierce. Also used figuratively.

Example Sentences:

  • (1) The penetration of (22)Na was not prevented by the presence of metabolic inhibitors or by 500 mm NaCl in the suspending medium.
  • (2) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
  • (3) After four years of existence, many evaluations were able to show the qualities of this system regarding root canal penetration, cleaning and shaping.
  • (4) testosterone, fentanyl, nicotine) may ultimately be administered in this way, important questions pertaining to pharmacology (tolerance), toxicity (irritation, sensitisation) and dose sufficiency (penetration enhancement) remain.
  • (5) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
  • (6) Thus, although ferric-enterochelin cannot penetrate the cell surface from outside, the complex that is formed within the envelope is transported normally into the cell.
  • (7) Major limitations of the conventional sperm penetration assay are the inability to assess several aspects of sperm function (zona binding and penetration) and the absence of human ovulatory products known to influence fertilization.
  • (8) The cercaria, microcercous in type, is liberated and actively penetrates a second terrestrial pulmonate where development to the free metacercarial stage takes place in the pericardial cavity.
  • (9) The incomplete penetrance of the neoplastic phenotype and the monoclonality of lymphoid tumors suggest that tumor formation in v-fps mice requires genetic or epigenetic events in addition to expression of the P130gag-fps protein-tyrosine kinase.
  • (10) All of these factors make morbidity and mortality associated with penetrating injuries low.
  • (11) The treatment led to decreased spinnbarkeit, arborization and sperum penetration in the cervical mucus.
  • (12) The penetration coefficient, determined by the surface tension, contact angle and viscosity, is a measure of the ability of a liquid to penetrate into a capillary space, such as interproximal regions, gingival pockets and pores.
  • (13) The rational surgical methods of treatment in 85 patients with suppurative hepatic echinococcosis penetrating into the abdomen cavity are presented.
  • (14) This apparent lack of centrosomal staining was not due to problems associated with penetration of the antibody probes, since staining adjacent to and within the centriolar cylinder was observed when phosphoprotein antigens recognized by the MPM-2 antibody were localized.
  • (15) Both types of oral cleft, cleft palate (CP) and cleft lip with or without CP (CLP), segregate in these families together with lower lip pits or fistulae in an autosomal dominant mode with high penetrance estimated to be K = .89 and .99 by different methods.
  • (16) Cefuzoname seems to be among the middle ranks of beta-lactam agents as far as penetration rate is concerned; however, when its potent antibacterial activity and broad spectrum are taken into account, the concentrations in CSF in patients with meningitis seem worth examining.
  • (17) The time of sperm penetration in the mouse eggs, however, was delayed for one-half to one hour when ejaculated sperm were used.
  • (18) Enzymatic lability does not, however, play as important a role as lipophilicity in the corneal and conjunctival penetration of cycloalkyl and aryl ester prodrugs.
  • (19) No infection threads were found to penetrate either root hairs or the nodule cells.
  • (20) Kinetic studies showed that significant inhibition of virus production occurred when the inhibitor was added to infected cultures up to 5 h after virus penetration.