What's the difference between directrix and female?

Directrix


Definition:

  • (n.) A directress.
  • (n.) A line along which a point in another line moves, or which in any way governs the motion of the point and determines the position of the curve generated by it; the line along which the generatrix moves in generating a surface.
  • (n.) A straight line so situated with respect to a conic section that the distance of any point of the curve from it has a constant ratio to the distance of the same point from the focus.

Example Sentences:

Female


Definition:

  • (n.) An individual of the sex which conceives and brings forth young, or (in a wider sense) which has an ovary and produces ova.
  • (n.) A plant which produces only that kind of reproductive organs which are capable of developing into fruit after impregnation or fertilization; a pistillate plant.
  • (a.) Belonging to the sex which conceives and gives birth to young, or (in a wider sense) which produces ova; not male.
  • (a.) Belonging to an individual of the female sex; characteristic of woman; feminine; as, female tenderness.
  • (a.) Having pistils and no stamens; pistillate; or, in cryptogamous plants, capable of receiving fertilization.

Example Sentences:

  • (1) Thirty-two patients (10 male, 22 female; age 37-82 years) undergoing maintenance haemodialysis or haemofiltration were studied by means of Holter device capable of simultaneously analysing rhythm and ST-changes in three leads.
  • (2) The Independent noted that one of the female protagonists yelled "You c***!"
  • (3) There were 12 males, 6 females, with mean age of 55.1 yrs (range 39-77 yrs).
  • (4) Determination of plasma luteinizing hormone (LH) levels in the peripubertal female rats revealed that plasma LH was increased transiently immediately after NPY administration.
  • (5) The sequential histopathologic alterations in femorotibial joints of partial meniscectomized male and female guinea pigs were evaluated at 1, 2, 3, 6, and 12 weeks post-surgery.
  • (6) Positivity was not correlated with current residence census tract socioeconomic indicators in black or white females.
  • (7) Eight-week-old virgin untreated female mice were induced to ovulate using equine chorionic gonadotropin (eCG) and human chorionic gonadotropin (hCG), and were then caged with males overnight.
  • (8) Groups of inbred female mice of strains CBA or C3H were infected genitally with a pathogenic human strain of Chlamydia trachomatis (N.I.1, serovar F) known to produce salpingitis and infertility in mice.
  • (9) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
  • (10) These results do not support the view that in the rat pheromones from adult males enhance puberty in females, contrary to what is known to happen in the mouse.
  • (11) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
  • (12) In common with other studies, we found that the injury occurred in competitive runners, especially females, and was likely to develop during competitive races or intensive training sessions.
  • (13) The serum ACE activity showed no significant difference between male and female in the control or sarcoidosis groups.
  • (14) Females were killed at various times after the onset of mating or artificial insemination, oviducts were fixed and sectioned serially, and spermatozoa were counted individually as to their location in the oviduct.
  • (15) We also demonstrated a significant difference in the Hb switching process between male and female newborns.
  • (16) Adult nonpregnant female rhesus monkeys fed purified diets containing 100 or 4 ppm zinc for 1 yr were mated then studied through midgestation.
  • (17) Female littermates injected with 0.15 M NaCl served as controls.
  • (18) In both cases, female cells presented more nucleoli than the respective male cells.
  • (19) The high concentrations of gonadotropins present in immature female rats by the end of the second week of life were suppressed by treatment with an antagonist against luteinizing hormone-releasing hormone (LHRH-A; Org.
  • (20) The purpose of the present study was to investigate whether the signaling behaviors of female Long-Evans rats varies over the estrous cycle.