To Absorb
する verb
If 吸収 is "absorption" the verb version is to absorb.
きゅうしゅうする
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
全社員が新システムに関する知識を吸収する良い機会です。
This is a great opportunity for all of the workers to absorb knowledge about the new system.