different between homotypic vs heterotypic

English

homotypic (not comparable)

(botany) literally "with the same type". In botanical nomenclature a homotypic synonym (or nomenclatural synonym) is a synonym that comes into being through a nomenclatural act
1. when a taxon gets a new name, without being included in another taxon (of the same rank). The old name becomes a homotypic synonym of the new name.
2. when a new name for a taxon is coined without displacing the existing name, the new name becomes a homotypic synonym.
The zoological equivalent is "objective synonym".

heterotypic (not comparable)

Of or involving a different type or types.
- 2014, Karestan C. Koenen, Ezra Susser (editors), A Life Course Approach to Mental Disorders, page 201,
  Heterotypic continuity refers to the presence of one disorder at an early point in time predicting the presence of a different disorder later in life.
(genetics) Relating to the first nuclear division in meiosis.
(botany) literally "with a different type". In botanical nomenclature a heterotypic synonym (or taxonomic synonym) is a synonym that comes into being when a taxon is reduced in status ("reduced to synonymy") and becomes part of a different taxon. The zoological equivalent is "subjective synonym".

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