Word Meanings - PRONUCLEUS - Book Publishers vocabulary database

One of the two bodies or nuclei (called male and female pronuclei) which unite to form the first segmentation nucleus of an impregnated ovum. Note: In the maturing of the ovum preparatory to impregnation, a part of the germinal vesicle becomes

Additional info about word: PRONUCLEUS

One of the two bodies or nuclei (called male and female pronuclei) which unite to form the first segmentation nucleus of an impregnated ovum. Note: In the maturing of the ovum preparatory to impregnation, a part of the germinal vesicle becomes converted into a number of small vesicles, which aggregate themselves into a single clear nucleus. which travels towards the center of the egg and is called the female pronucleus. In impregnation, the spermatozoön which enters the egg soon loses its tail, while the head forms a nucleus, called the male pronucleus, which gradually travels towards the female pronucleus and eventually fuses with it, forming the first segmentation nucleus.

Related words: (words related to PRONUCLEUS)

• CALLOSUM
  The great band commissural fibers which unites the two cerebral hemispheres. See corpus callosum, under Carpus.
• CALLOW
  1. Destitute of feathers; naked; unfledged. An in the leafy summit, spied a nest, Which, o'er the callow young, a sparrow pressed. Dryden. 2. Immature; boyish; "green"; as, a callow youth. I perceive by this, thou art but a callow maid. Old Play .
• CALLE
  A kind of head covering; a caul. Chaucer.
• FEMALE
  A plant which produces only that kind of reproductive organs which are capable of developing into fruit after impregnation or fertilization; a pistillate plant. (more info) 1. An individual of the sex which conceives and brings forth young, or
• UNITERABLE
  Not iterable; incapable of being repeated. "To play away an uniterable life." Sir T. Browne.
• FIRST
  Sw. & Dan. förste, OHG. furist, G. fürst prince; a superlatiye form 1. Preceding all others of a series or kind; the ordinal of one; earliest; as, the first day of a month; the first year of a reign. 2. Foremost; in front of, or in advance of,
• MATURENESS
  The state or quality of being mature; maturity.
• VESICLE
  A bladderlike vessel; a membranous cavity; a cyst; a cell. Specifically: --
• MATURITY
  1. The state or quality of being mature; ripeness; full development; as, the maturity of corn or of grass; maturity of judgment; the maturity of a plan. 2. Arrival of the time fixed for payment; a becoming due; termination of the period a note,
• NUCLEUS
  The body or the head of a comet. An incipient ovule of soft cellular tissue. A whole seed, as contained within the seed coats. (more info) 1. A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made;
• CALL
  callen, AS. ceallin; akin to Icel & Sw. kalla, Dan. kalde, D. kallen 1. To command or request to come or be present; to summon; as, to call a servant. Call hither Clifford; bid him come amain Shak. 2. To summon to the discharge of a particular
• WHICHEVER; WHICHSOEVER
  Whether one or another; whether one or the other; which; that one which; as, whichever road you take, it will lead you to town.
• CALLIOPE
  The Muse that presides over eloquence and heroic poetry; mother of Orpheus, and chief of the nine Muses. (more info) beautiful) +
• CALLOT
  A plant coif or skullcap. Same as Calotte. B. Jonson.
• CALLIGRAPHIC; CALLIGRAPHICAL
  Of or pertaining to calligraphy. Excellence in the calligraphic act. T. Warton.
• MATURANT
  A medicine, or application, which promotes suppuration.
• MATURING
  Approaching maturity; as, maturing fruits; maturing notes of hand.
• MATURESCENT
  Approaching maturity.
• CALLOSE
  Furnished with protuberant or hardened spots.
• CALLIDITY
  Acuteness of discernment; cunningness; shrewdness. Her eagly-eyed callidity. C. Smart.
• HEMATURIA
  Passage of urine mingled with blood.
• GYMNASTICALLY
  In a gymnastic manner.
• HYPERCRITICALLY
  In a hypercritical manner.
• SCALLION
  A kind of small onion , native of Palestine; the eschalot, or shallot. 2. Any onion which does not "bottom out," but remains with a thick stem like a leek. Amer. Cyc.
• UNEMPIRICALLY
  Not empirically; without experiment or experience.
• UNIVOCALLY
  In a univocal manner; in one term; in one sense; not equivocally. How is sin univocally distinguished into venial and mortal, if the venial be not sin Bp. Hall.
• PARABOLICALLY
  1. By way of parable; in a parabolic manner. 2. In the form of a parabola.
• STEREOGRAPHICALLY
  In a stereographical manner; by delineation on a plane.
• HEMEROCALLIS
  A genus of plants, some species of which are cultivated for their beautiful flowers; day lily.
• ACRONYCALLY
  In an acronycal manner as rising at the setting of the sun, and vise versâ.
• PHYSIOLOGICALLY
  In a physiological manner.
• DIAMETRICALLY
  In a diametrical manner; directly; as, diametrically opposite. Whose principles were diametrically opposed to his. Macaulay.