from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun plural Oviparous animals considered as a group.

from The Century Dictionary.

  • Animals which lay eggs to be hatched outside the body of the female parent, or those which are oviparous: opposed to Vivipara.

from the GNU version of the Collaborative International Dictionary of English.

  • noun plural (Zoöl.) An artificial division of vertebrates, including those that lay eggs; -- opposed to Vivipara.


from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin ōvipara, neuter pl. of ōviparus, egg-laying : ōvi-, ovi- + -parus, -parous.]


  • But to continue our overview: the remainder of book II (from chapter 5 on) discusses the causes of the embryological development of vivipara, while the ovipara are the primary focus in book III, which closes with a discussion of animals that are not sexually generated, including those that arise ˜spontaneously.™

    Aristotle's Biology

  • Some of these are called membranes and others choria, the difference being one of more or less, and they exist in ovipara and vivipara alike.

    On the Generation of Animals

  • The passage is the same as that of the solid nutriment in all those animals that have no penis, in all the ovipara, even those of them that have a bladder, as the tortoises.

    On the Generation of Animals

  • But nevertheless they are found to wake even in the womb (this is clear in dissections and in the ovipara), and then they immediately fall into a sleep again.

    On the Generation of Animals

  • Therefore in such animals the uterus is dissimilar to that of both the vivipara and ovipara, because they participate in both classes; for it is at once near the hypozoma and also stretching along downwards in all the cartilaginous fishes.

    On the Generation of Animals

  • For no viviparous animal, be it apodous or be it possessed of feet, is so given to creep into holes as are the ovipara.

    On the Parts of Animals

  • In the vivipara it is large and rich in blood, because of their natural heat; while in the ovipara it is small and dry but capable of expanding to a vast extent when inflated.

    On the Parts of Animals

  • In the ovipara, again, it is low in fish (as in women and the viviparous quadrupeds), high in birds and all oviparous quadrupeds.

    On the Generation of Animals

  • They exist in none but viviparous animals; though in some ovipara certain parts are metaphorically spoken of as horns, in virtue of a certain resemblance.

    On the Parts of Animals

  • But among the ovipara (1) birds produce a perfect hard-shelled egg, unless it be injured by disease, and the eggs of birds are all two-coloured.

    On the Generation of Animals


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