What's the difference between exfoliation and expoliation?

Exfoliation

Definition:

(n.) The scaling off of a bone, a rock, or a mineral, etc.; the state of being exfoliated.

Example Sentences:

(1) No exfoliation could be observed at lower concentrations.
(2) We compared two noninvasive methods of sampling exfoliated cervical cells--cervicovaginal lavage and scrape-Cytobrush.
(3) A model system of exfoliated normal human cervicovaginal squamous cells, exfoliated rodent tumor cells, and acellular, viscous, mucuslike material was used to investigate cell deposition on smear preparations made with three different instruments: plastic spatulas, wooden spatulas, and brush-tipped collectors.
(4) A prospective study was performed by 30 ophthalmologists to determine the prevalence of exfoliation syndrome (ES) in different areas of France and its relationship with glaucoma.
(5) There was no evidence of exfoliated acinar cells in the drainage fluid.
(6) They take the same appearance in vivo and in vitro: cell agglutination, nuclear hypertrophy, exfoliation and release of cellular material, formation of uniting bridges across the gap between the shelves.
(7) The ability of phage group II staphylococcal strain UT 0101 to produce exfoliative toxin and bacteriocin could be eliminated at a high frequency after growth at high temperatures or in the presence of ethidium bromide or sodium dodecyl sulfate.
(8) The combined action of IFN-gamma and TNF-alpha caused a dose-related cellular exfoliation, leading to the formation of a mucoid cap made of mucus and cellular debris.
(9) Nineteen patients with suspected malignant obstruction at the confluence of the bile ducts had exfoliative biliary cytology and fine needle aspiration cytology performed.
(10) While many spontaneously resorb or exfoliate, some, as in this case, may need surgical removal.
(11) Exfoliative cytology from the uterine cavity or ultrasonography does still not allow the final and definite diagnosis.
(12) Exfoliative cytology is helpful in the follow-up of bladder tumours.
(13) The presence of influenza virus type A (H1N1), A (H3N2) and B was revealed by immunofluorescence in exfoliated cells collected from nasopharynx.
(14) Exfoliated cells from patients with squamous carcinoma of the cervix contain antigens related to herpesvirus subtype 2, as revealed by direct or indirect immunofluorescent techniques.
(15) The distribution of collagen types I, IV and laminin was studied in normal and exfoliative vessels.
(16) Extensive necrossis and exfoliation of the seminiferous elements were conspicuous.
(17) The morphology of apocrine cells exfoliated in breast cyst fluid (BCF) was studied in 78 BCF samples obtained from 39 premenopausal patients with gross cystic disease who were bearing two simultaneously aspirated cysts.
(18) Acidified Maalox 70 and Al(OH)3 were significantly more potent than unmodified agents against all four tested types of acute mucosal lesions, and this action was probably due to their 'mild irritant' effect as evidenced by extensive exfoliation of the surface epithelial cells observed microscopically after the exposure of the mucosa to these agents.
(19) Exfoliative cytology emerges as a valuable tool for the diagnosis of allergic conjunctivitis, while the presence of noncellular elements is of particular diagnostic significance.
(20) In the case of non-zero fluxes at the boundaries the condition of stability of exfoliated stationary structures in the systems with bistable local dynamics is given.