早老素 Traditional form: 早老素 Pinyin (reading): zǎolǎosù Definitions: presenilins Characters: 早 - early; soon; morning 老 - old, aged; experienced 素 - plain; white; vegetarian; formerly; normally Traditional characters: 早 - early; soon; morning 老 - old, aged; experienced 素 - plain; white; vegetarian; formerly; normally