noun, plural nu·cel·li [noo-sel-ahy, nyoo-] /nuˈsɛl aɪ, nyu-/. Botany.
Origin of nucellus
Examples from the Web for nucellus
The hilum or base of the seed, and the chalaza or base of the nucellus are united by means of the raphe r.
The Insemineae include forms in which the nucellus is not developed, and therefore there can be no seed.
The connexion between the base of the ovule and the base of the nucellus is kept up by means of the raphe r.
The base of the nucellus is indicated by the chalaza ch, while the apex is at the micropyle m.
The point where the integuments are united to the base of the nucellus is called the chalaza (figs. 111, 112).