albumen.
(Of thelat.)(albumen, - inis, clear egg).
1. m. egg, composed mainly of albumin.
2. m. Bot. Tissue that surrounds the embryo of some plants, such as wheat and ricin, and serves food when the seed germinates. Their appearance varies depending on the nature of the nutritious substances it contains, and can be fleshy, starchy, oily, horny and slime molds.