perineal artery
— Navneord
– Engelsk
～ a branch of the internal pudendal artery that supplies superficial structures of the perineum
perineotomy
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～ surgical incision into the perineum
perineum
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～ the general region between the anus and the genital organs
perineurium
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～ the sheath of connective tissue that covers a bundle of nerve fibers
period
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～ the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; "the women were sickly and subject to excessive menstruation"; "a woman does not take the gout unless her menses be stopped"--Hippocrates; "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"--Aristotle
period
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～ the end or completion of something; "death put a period to his endeavors"; "a change soon put a period to my tranquility"
period
— Navneord
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～ a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations; "in England they call a period a stop"
period
— Navneord
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～ the interval taken to complete one cycle of a regularly repeating phenomenon
period
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～ an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
period
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～ (ice hockey) one of three divisions into which play is divided in hockey games
period
— Navneord
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～ a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"
Pennsylvanian period
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～ from 310 million to 280 million years ago; warm climate; swampy land
periodic acid
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～ any acid of iodine that contains oxygen
periodic law
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～ (chemistry) the principle that chemical properties of the elements are periodic functions of their atomic numbers
periodic edema
— Navneord
– Engelsk
～ recurrent large circumscribed areas of subcutaneous edema; onset is sudden and it disappears within 24 hours; seen mainly in young women, often as an allergic reaction to food or drugs
periodic motion
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～ motion that recurs over and over and the period of time required for each recurrence remains the same
periodic movement
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～ motion that recurs over and over and the period of time required for each recurrence remains the same
periodic event
— Navneord
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～ an event that recurs at intervals
periodic breathing
— Navneord
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～ abnormal respiration in which periods of shallow and deep breathing alternate
periodical cicada
— Navneord
– Engelsk
～ North American cicada; appears in great numbers at infrequent intervals because the nymphs take 13 to 17 years to mature