Chalaza definition

Chalaza





Home | Index


We love those sites:

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Chalaza \Cha*la"za\, n.; pl. E. {Chalazas}, L. {Chalaz[ae]}.
     [NL., fr. Gr. ? hail, pimple.]
     1. (Bot.) The place on an ovule, or seed, where its outer
        coats cohere with each other and the nucleus.
        [1913 Webster]
  


     2. (Biol.) A spiral band of thickened albuminous substance
        which exists in the white of the bird's egg, and serves to
        maintain the yolk in its position; the treadle.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  chalaza
       n 1: basal part of a plant ovule opposite the micropyle; where
            integument and nucellus are joined
       2: one of two spiral bands of tissue connecting the egg yolk to
          the enclosing membrane at either end of the shell
       [also: {chalazae} (pl)]

















Powered by Blog Dictionary [BlogDict]
Kindly supported by Vaffle Invitation Code Get a Freelance Job - Outsource Your Projects | Threadless Coupon
All rights reserved. (2008-2024)