From The Collaborative International Dictionary of English v.0.44 [gcide]:
Cotyledon \Cot'y*le"don\ (k?t'?-l?"d?n), noun [Gr.??? a cupshaped hollow, fr. ???. See {Cotyle}.]
1. (Anat.) One of the patches of villi found in some forms of placenta.
2. (Bot.) A leaf borne by the caulicle or radicle of an embryo; a seed leaf.
Note: Many plants, as the bean and the maple, have two cotyledons, the grasses only one, and pines have several. In one African plant ({Welwitschia}) the cotyledons are permanent and grow to immense proportions.
From WordNet (r) 2.0 [wn]:
noun
Define.com is a registered nonprofit corporation dedicated solely to the global public interest and the advancement of humanity. It belongs to all of us who have a desire to promote electronic democracy, science, creativity, imagination, reason, critical thinking, peace, race and gender equality, civil rights, equal access to education, personal liberty, free speech, animal rights, compassionate and nonviolent parenting, social and economic justice, global monetary reform, Secular Humanism, cognitive liberty and a permanent cessation of The War on Drugs.
Let's see what we can do if we put our heads together.
0