en·do·sperm 
(ĕndə-spûrm′)
(ĕndə-spûrm′)n.
The nutritive tissue within seeds of flowering plants, surrounding and absorbed by the embryo.
- radiative zone
- radiator
- radical
- radical expression
- radicalism
- radicalization
- radicalize
- radically
- radical mastectomy
- radicalness
- radical sign
- radicand
- radicchio
- radices
- radicle
- radii
- radio
- radio-
- radioactive
- radioactive decay
- radioactively
- radioactive series
- radioactivity
- radio astronomy
- radio beacon