垂たらし込こむ

godan verb (-mu), transitive verb

drop into drop by drop; drip into

Describes slowly adding a liquid or fine substance into a container or mixture, emphasizing the gradual, drop-by-drop action.

• ソースに醤しょう油ゆを少すこしずつ垂たらし込こむ。

  I drip soy sauce little by little into the sauce.

• 試し験けん管かんに試し薬やくを垂たらし込こんで反はん応のうを見みる。

  I drop the reagent into the test tube and observe the reaction.