(n.) A coming together; sexual intercourse; copulation.
Example Sentences:
(1) The spermatozoa were from three experiments: 1) incubation in Hepes buffer, 2) natural coition, and 3) insemination.
(2) Canine chastity belt In 1903, German Baroness Margarethe Johanne Christianne Marie von Heyden and her husband, anxious to maintain the purity of the pedigree of their dogs, designed a device to prevent "coition in the case of bitches and other female animals more particularly for the purpose of preventing cross-breeding".
(3) Theoretically, in female circumcision the genital scaring and dyspareunia may lead to genital ulceration and anal coition, which are co-factors in HIV transmission.
(4) Homologous matings showed that the two lines behaved differently before and during coition and that a mixture of the two behaviour patterns occurred in heterologous crossings.
(5) Different preparations of Ruta graveolens were administered orally to female rats (Days 1-10 post coition) and female hamsters (Days 1-6 post coition).
Coitus
Definition:
Example Sentences:
(1) The energey expenditure during coitus for long-married couples is equivalent to that of climbing stairs, and consequently the risk of heart attack is low.
(2) Decidual response also is produced in the immature rat after coitus-induced ovulation.
(3) Significantly, more of the patients aged below 30 years reported erection sufficient for coitus (p less than 0.05).
(4) Sterile coitus on the other hand, stimulates the uterine cervix in the rat and induces a physiological state of pseudopregnancy which interrupts the normal pattern of the oestrous cycle and establishes a persistent dioestrous state.
(5) Because of early age at initiation of intercourse and associated nonuse of contraception, half of first premarital pregnancies to teens occur in the first six months after they begin coitus; one-fifth occur in the first month.
(6) Among the strongest determinants of first coitus at those ages are infrequent church attendance, parental education of fewer than 12 years and black race.
(7) When correlated for age at first coitus, there was a significant excess of dysplasias in oral contraceptive users.
(8) In men, HIV seropositivity was associated with anal coitus (OR = 4.0), homosexual relations (OR = 3.96), sexual relations with infected persons (OR = 3.75), and sexual relations abroad (OR = 1.88); in women there was an association with intravenous drug use (chi 2 = 10.72) and with sexual relations abroad (OR = 12.67).
(9) The importance of adequately preparing the women emotionally and physically for coitus, a matter which certain males tend to ignore, is emphasized.
(10) Observations were made on excised female tracts 1-2 h post-coitus (pc) and 1-2 h before and after the approximate time of ovulation.
(11) Primary infertility, more prevalent among those born in 1946-60, was found to be related to a higher level of education, an urban life style and low age at first coitus.
(12) In couples that reported a satisfying sexual activity, the first coitus occurred 6 months after surgery (range: 4 to 15 months).
(13) It is concluded that the small number of sperm remaining in the vagina following coitus quickly become inactivated.
(14) The paper examines two aspects of coitus interruptus as a sexual practice: (1) how, in the age of fertility decline in Western Europe, its meaning was reinterpreted from an earlier theological view that condemned it as licentious to a nineteenth century view that emphasized restraint, and (2) how it was actually experienced by a socially stratified birth-controlling population in rural Sicily, ca 1900-1970.
(15) Coitus induced ovulation produced a characteristic oviductal motility pattern consisting of (i) initial relaxation of both isthmus and ampulla (4-12 h) followed by (ii) increased isthmic motility in the face of a continually relaxed ampulla (36-48 h), and finally phase (iii) leading to restitution of both ampullary and isthmic motility to the base-line at 72-96 h. Estimation of ova positions indicated the presence of fertilized eggs in the ampulla and ampullo-isthmic junction at 48 h and the ova could come to the end of the isthmic segment only at 72 h or after.
(16) The blastocysts obtained under a low oxygen-SOD culture condition were transplanted by direct insertion into the uterus of pseudopregnant females 3 days after infertile coitus.
(17) Comparison with previous investigations revealed that the average age at the first coitus showed a tendency to decrease in all three regions during the past 20-30 years.
(18) Four pony mares were readily infected with the organism of contagious equine metritis by intracervical inoculation and one by coitus with an infected stallion.
(19) These findings also point to the possible interference of certain pathologies in correlating AP activity and time since coitus.
(20) In both of the investigations, the majority stated that the first coitus was with a person of the same age group.