the GNU version of the Collaborative International Dictionary of English
n. An ovule.
The Century Dictionary and Cyclopedia
n. An ovule; an ovum.
n. [capitalized] In conchology, the typical genus of Ovulidæ.
Word Usage
"The female cell of the animal organism is always called the ovum (or ovulum, egg, or egg-cell); the male cells are known as the sperm or seed-cells, or the spermatozoa (also spermium and zoospermium)."