1.
system, systematic order
An organized structure or method.
この理論を系統的に学ぶ。
I study this theory systematically.
データを系統立てて整理する。
I organize the data systematically.
系統的な研究が必要だと先生に言われた。
My teacher told me that systematic research is needed.
2.
lineage, genealogy, line of descent
A line of ancestry or descent.
生物の系統関係を調べる。
I am researching the phylogenetic relationships of organisms.
彼は武士の系統に属している。
He belongs to a samurai lineage.
この犬種の系統図をたどると、ヨーロッパが起源だとわかる。
If you trace back the genealogy of this dog breed, you can see it originated in Europe.
系統 refers to a system, lineage, or line of descent.
TWO MAIN MEANINGS:
1. System/order: an organized structure or methodology
2. Lineage/genealogy: a line of ancestry or descent
COMMON EXPRESSIONS:
- 系統的に: systematically
- 系統図: genealogical chart, family tree; system diagram
- 系統立てる: to systematize, to organize
SCIENTIFIC USAGE:
In biology, 系統 refers to phylogenetic relationships (系統関係).
SIMILAR WORDS:
- 系統: system, lineage (organized structure)
- 体系: system (theoretical framework)
- 血統: bloodline, lineage (family descent)