Yes. The ammonium ion has a formula of NH4+ and has a positive charge so it is a cation.
What does Asa mean? Asa [asa] as a boys' name (also used less generally as girls' name Asa) is pronounced AY-sah. It is of Hebrew origin, and the meaning of Asa is doctor, healer. Biblical: name of the third king of Judah, who reigned for forty years. Made popular by the Puritans in the 17th century.
In English this means a kind of citrus fruit. However, this orange is called mikan in Japanese. The English name satsuma comes from the name of the province of Japan where the oranges were grown. The province Satsuma no longer exists. It was located in present-day Kyushu. Japanese people associate the word satsuma with a kind of sweet potato, satsuma-imo (è©æ©è), rather than oranges.