Meaning of ラ行 in Japanese

It seems that your search contains the following:

Definition of ラ行

ラぎょう(ragyou) 【ラ行】

(n) classification for Japanese verb with the dictionary form ending in "ru"; "ra" column or row of the kana syllabary

ラぎょうへんかくかつよう(ragyouhenkakukatsuyou) 【ラ行変格活用】

(n) irregular conjugation (inflection, declension) of a limited number of verbs ending in "ru" (in written Japanese)