adoption meaning
ENWAdoption
- Adoption is a process whereby a person assumes the parenting of another, usually a child, from that person's biological or legal parent or parents, and, in so doing, permanently transfers all rights and responsibilities, along with filiation,
FR adoption 
- NounPLadoptionsSUF-tion
- The act of adopting, or state of being adopted; voluntary acceptance of a child of other parents to be the same as one's own child.
- “The story of this adoption is, of course, the pivot round which all the circumstances of the mysterious tragedy revolved. Mrs. Yule had an only son, namely, William, to whom she was passionately attached ; but, like many a fond mother, she had the desire of mapping out that son's future entirely according to her own ideas. […]”
- Admission to a more intimate relation; reception; as, the adoption of persons into hospitals or monasteries, or of one society into another.
- The choosing and making that to be one's own which originally was not so; acceptance; as, the adoption of opinions.
- (computing) Transfer between an old system to another (usually better) system.
- Our school is considering the adoption of Wiktionary as the standard dictionary.
- The act of adopting, or state of being adopted; voluntary acceptance of a child of other parents to be the same as one's own child.
- More Examples
- Used in the Middle of Sentence
- The impact on workers is fairly obvious but I believe that managerial jobs have also been deskilled by the adoption of controlling systems and procedures.
- Increases in the proportion of early breast cancer patients and the wide adoption of oncoplastic surgery and neoadjuvant chemotherapy may have contributed to these observed changes in surgical trends.
- Used in the Middle of Sentence
Definition of adoption in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
- fr adoption
- en adoptions
- fr adoptions
- en adoptionism
- en adoptionist
Source: Wiktionary
Grammatically, this word "adoption" is a noun, more specifically, a countable noun.