al·le·lo·chem·i·cal 
(ə-lē′lə-kĕmĭ-kəl, ə-lĕl′ə-)
(ə-lē′lə-kĕmĭ-kəl, ə-lĕl′ə-)n.
A chemical emitted by an organism of one species that influences the physiology or behavior of an organism of a different species. Synthetic allelochemicals are sometimes used as herbicides or insecticides.
[Greek allēlōn, mutually (from allos, other; see al-1 in the Appendix of Indo-European roots) + CHEMICAL.]
- star-of-Bethlehem
- Star of David
- starquake
- Starr
- Starr
- Starr
- starriness
- starry
- starry-eyed
- Stars and Bars
- Stars and Stripes
- star sapphire
- star shell
- starship
- Star-Spangled Banner
- starstruck
- star-struck
- start
- start a family
- start a fire under
- start codon
- starter
- star thistle
- starting block
- starting gate