homothallic
adjective
ho·mo·thal·lic ˌhō-mō-ˈtha-lik 
1
: having a haploid phase that produces two kinds of gametes capable of fusing to form a zygote —used especially of algae and fungi
2
: monoecious
homothallism
ˌhō-mō-ˈtha-ˌli-zəm
noun 
Word History
Etymology
hom- + Greek thallein to sprout, grow — more at thallus
First Known Use
1904, in the meaning defined at sense 1
Medical Definition
homothallic
adjective
ho·mo·thal·lic ˌhō-mō-ˈthal-ik
: having only one haploid phase that produces two kinds of gametes capable of fusing to form a zygote