Definition of "unisexual" [u•ni•sex•u•al]

• Of or relating to only one sex. (adjective)
• Having only one type of sexual organ; not a hermaphrodite. (adjective)
• Botany Having either stamens or pistils but not both. (adjective)
• Unisex. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Flowers in Uncinia are unisexual, that is male and female reproductive structures are on separate flowers."
• "The stupidity of this debate is part of the reason I am a unisexual."
• "The ancestral state in other characters is equivocal: e.g., bisexual vs. unisexual flowers, whorled vs. spiral floral phyllotaxis, presence vs. absence of tepal differentiation, anatropous vs. orthotropous ovules."