What's the difference between after and prior?

After


Definition:

  • (prep.) Behind in place; as, men in line one after another.
  • (prep.) Below in rank; next to in order.
  • (a.) Next; later in time; subsequent; succeeding; as, an after period of life.
  • (a.) Hinder; nearer the rear.
  • (a.) To ward the stern of the ship; -- applied to any object in the rear part of a vessel; as the after cabin, after hatchway.
  • (prep.) Later in time; subsequent; as, after supper, after three days. It often precedes a clause. Formerly that was interposed between it and the clause.
  • (prep.) Subsequent to and in consequence of; as, after what you have said, I shall be careful.
  • (prep.) Subsequent to and notwithstanding; as, after all our advice, you took that course.
  • (prep.) Moving toward from behind; following, in search of; in pursuit of.
  • (prep.) Denoting the aim or object; concerning; in relation to; as, to look after workmen; to inquire after a friend; to thirst after righteousness.
  • (prep.) In imitation of; in conformity with; after the manner of; as, to make a thing after a model; a picture after Rubens; the boy takes after his father.
  • (prep.) According to; in accordance with; in conformity with the nature of; as, he acted after his kind.
  • (prep.) According to the direction and influence of; in proportion to; befitting.
  • (adv.) Subsequently in time or place; behind; afterward; as, he follows after.

Example Sentences:

Prior


Definition:

  • (a.) Preceding in the order of time; former; antecedent; anterior; previous; as, a prior discovery; prior obligation; -- used elliptically in cases like the following: he lived alone [in the time] prior to his marriage.
  • (a.) The superior of a priory, and next below an abbot in dignity.

Example Sentences:

  • (1) Combination therapy was most effective in patients receiving HCTZ prior to enalapril.
  • (2) These results indicated that the PG determination was the most accurate predictor of fetal lung well-being prior to birth among the clinical tests so far reported.
  • (3) Prior to oral feeding, little or no ELA was detected in stools and endotoxinemia was ascertained in only six of 45 infants (13%).
  • (4) Release of 51Cr was apparently a function of immune thymus-derived lymphocytes (T cells) because it was abrogated by prior incubation of spleen cells with anti-thymus antiserum and complement but was undiminished by passage of spleen cells through nylon-wool columns.
  • (5) Prior to joining JOE Media, Will was chief commercial officer at Dazed Group, where he also sat on the board of directors.
  • (6) The secretion of GH as measured by increased plasma level, in response to oral administration of 500 mg L-dopa or 30 min-infusion of arginine, was not modified by prior intravenous administration of 200 micrograms GH-releasing hormone (GHRH).
  • (7) In a double-blind, crossover-designed study, 9 male subjects (age range: 18-25 years) received 25 mg orally, four times per day of either S or an identically-appearing placebo (P) 2 d prior to and during HA.
  • (8) The remainder of the radioactivity appeared chromatographically just prior to the bisantrene peak, indicating that compounds more polar than the parent were present as transformation products.
  • (9) The number of gastrin-immunoreactive cells actually decreases just prior to weaning but then increases at and after, weaning.
  • (10) Sephadex LH-20 column chromatography was used for the separation of the steroid prior to assay.
  • (11) Blood samples were collected from an antecubital vein at sea level (S1), in a base camp at 1515 m prior to the summit ascent (S2), on the summit at 3285 m after 6.5 hours of climbing (S3), at base camp immediately after the descent (S4), and at sea level following a trail descent from the base camp (S5).
  • (12) A direct radioimmunoassay method using highly specific antisera without prior deconjugation has been developed for determination of estradiol 17-glucuronide and estriol 16-glucuronide in human plasma.
  • (13) Multiple operations were done in 7 patients prior to the appropriate diagnosis and treatment.
  • (14) Symptoms consistent with major affective disorder were present in one half and depressive spectrum diagnoses were made in one fourth of the cases prior to final diagnosis.
  • (15) In the genitourinary clinic setting, clinical diagnosis prior to biopsy was found frequently to be inaccurate.
  • (16) None of these were apparent on prior roentgenograms of the chest.
  • (17) It has a poor prognosis prior to the current combined treatment of surgical ablation, radiation to the surgical field, and chemotherapy for microscopic metastases.
  • (18) The flow cytometric measured DNA content (i.e., DNA index), S-fractions, and histopathologic malignancy grades were studied for ninety uterine cervical squamous cell carcinomas using tissue biopsies taken prior to radiotherapy.
  • (19) The consequences of proved hypersensitivity in patients with metal-to-plastic prostheses, either present prior to insertion of the prosthesis or evoked by the implant material, are not known.
  • (20) However, the effect of prior jaw motion and the effect of the recording site on the EMG amplitudes and on the vertical dimension of minimum EMG activity have not been documented.