|hed.ərō|thalik adjective
Etymology: heter- + thall- + -ic
1. : having two or more genetically incompatible but morphologically similar haploid phases which function as separate sexes or strains — used especially of certain algae and fungi or of the unisexual spores producing these strains; compare homothallic , minus , plus
2. : dioecious
• het·er·o·thal·lism ˌ ̷ ̷ ̷ ̷ ̷ ̷ˈthaˌlizəm noun -s
• het·er·o·thal·ly ˈ ̷ ̷ ̷ ̷ ̷ ̷ˌthalē noun -es