硷 礆 jian3
variant of 鹼|碱, alkali

strokes 18
radical
石
石
strokes after radical 13
烟硷 煙礆 yan1 jian3
variant of 菸鹼|菸碱; nicotine

菸硷 菸礆 yan1 jian3
nicotine; also written 菸鹼|菸碱