(v. t.) To drive close; to press firmly together: to wedge into a place.
(n.) Contact or impression by touch; collision; forcible contact; force communicated.
(n.) The single instantaneous stroke of a body in motion against another either in motion or at rest.
Example Sentences:
(1) Technical factors that account for increased difficulty in these patients include: problems with guide catheter impaction and ostial trauma; inability to inflate the balloon with adequate guide catheter support; and need for increased intracoronary manipulation.
(2) McDonald said cutting better deals with suppliers and improving efficiency as well as raising some prices had only partly offset the impact of sterling’s fall against the dollar.
(3) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
(4) In addition, congenital anemias such as sickle cell disease can impact on the health of the mother and fetus.
(5) The effects of brain injury can be catastrophic and long-term so the impact of more research would be vast, but affected numbers are too small so it loses out.
(6) The impact of ending 500 years of shipbuilding in Portsmouth won't be seen in the data for a while.
(7) In Stage II patients, chemotherapy has an impact on disease mortality for ER-positive and ER-negative premenopausal women and possibly ER-negative postmenopausal patients.
(8) The matter is now in the hands of the Guernsey police and the law officers.” One resident who is a constant target of the paper and has complained to police, Rosie Guille, said the allegations had a “huge impact on morale” on the island.
(9) The Black pregnant teen is a microcosm of the impact of society on the most vulnerable.
(10) We propose that the results mainly reflect a variable local impact of infection control and that a much more restrictive use of IUTCs is possible in many wards.
(11) In assessing damaged nets and curtains it must be recognised that anything less than the best vector control may have no appreciable impact on holoendemic malaria.
(12) The pharmacological effects characterize reproterol as a bronchospasmolytic with preferential impact on the adrenergic beta2-receptors.
(13) The procedure includes identifying "critical individuals," i.e., those who would have the greatest impact on the lod scores, should their diagnostic status in fact change.
(14) He elaborates: "Republicans use powerful economic wedge issues to great impact.
(15) These agents may improve functional status, but in general have had little impact on survival.
(16) While much research has examined the aetiology and treatment of asthma, little work has been done on its social impact.
(17) Further development of meta-analysis in such an expanded way may have an important impact on decision-making in clinical medicine, and in health policies.
(18) Principal conclusions are: 1) rapid change to predominantly heterosexual HIV transmission can occur in North America, with serious societal impact; 2) gender-specific clinical features can lead to earlier diagnosis of HIV infection in women; 3) HIV infection in women does not pursue an inherently more rapid course than that observed in men.
(19) "I have to say that it is my expectation that they probably can be, because the data that we have to date is unlikely to show an adverse impact."
(20) The impact of ethnicity on the stress process in old age was examined using two surveys of Australians aged 60 years and older.
On
Definition:
(prep.) In continuance; without interruption or ceasing; as, sleep on, take your ease; say on; sing on.
(prep.) The general signification of on is situation, motion, or condition with respect to contact or support beneath
(prep.) At, or in contact with, the surface or upper part of a thing, and supported by it; placed or lying in contact with the surface; as, the book lies on the table, which stands on the floor of a house on an island.
(prep.) To or against the surface of; -- used to indicate the motion of a thing as coming or falling to the surface of another; as, rain falls on the earth.
(prep.) Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with; as, to play on a violin or piano. Hence, figuratively, to work on one's feelings; to make an impression on the mind.
(prep.) At or near; adjacent to; -- indicating situation, place, or position; as, on the one hand, on the other hand; the fleet is on the American coast.
(prep.) In addition to; besides; -- indicating multiplication or succession in a series; as, heaps on heaps; mischief on mischief; loss on loss; thought on thought.
(prep.) Indicating dependence or reliance; with confidence in; as, to depend on a person for assistance; to rely on; hence, indicating the ground or support of anything; as, he will promise on certain conditions; to bet on a horse.
(prep.) At or in the time of; during; as, on Sunday we abstain from labor. See At (synonym).
(prep.) At the time of, conveying some notion of cause or motive; as, on public occasions, the officers appear in full dress or uniform. Hence, in consequence of, or following; as, on the ratification of the treaty, the armies were disbanded.
(prep.) Toward; for; -- indicating the object of some passion; as, have pity or compassion on him.
(prep.) At the peril of, or for the safety of.
(prep.) By virtue of; with the pledge of; -- denoting a pledge or engagement, and put before the thing pledged; as, he affirmed or promised on his word, or on his honor.
(prep.) To the account of; -- denoting imprecation or invocation, or coming to, falling, or resting upon; as, on us be all the blame; a curse on him.
(prep.) In reference or relation to; as, on our part expect punctuality; a satire on society.
(prep.) Of.
(prep.) Occupied with; in the performance of; as, only three officers are on duty; on a journey.
(prep.) In the service of; connected with; of the number of; as, he is on a newspaper; on a committee.
(prep.) Forward, in progression; onward; -- usually with a verb of motion; as, move on; go on.
(prep.) Forward, in succession; as, from father to son, from the son to the grandson, and so on.
(prep.) Adhering; not off; as in the phrase, "He is neither on nor off," that is, he is not steady, he is irresolute.
(prep.) Attached to the body, as clothing or ornament, or for use.
(prep.) In progress; proceeding; as, a game is on.