16-letter words containing a, g, l, y, c
- yellow archangel — a Eurasian herbaceous plant (Lamiastrum luteum) that has yellow helmet-shaped flowers: family Lamiaceae (labiates)
- ziegler catalyst — any of a group of catalysts, such as titanium trichloride (TiCl3) and aluminium alkyl (Al(CH3)3), that produce stereospecific polymers