element (key component of sth); (chemistry) element; (math.) element (member of a set)

Russell (name); Bertrand Arthur William, 3rd Earl Russell (1872-1970), British logician, rationalist philosopher and pacifist

toxin; (fig.) pernicious influence

antibiotic

adrenaline

raw silk; white; plain, unadorned; vegetarian (food); essence; nature; element; constituent; usually; always; ever

hormone

vitamin

to be a vegetarian

insulin

essential factor; key constituent

to continue in one's own way (idiom)

plain and simple; unadorned; simple living; not frivolous

pixel

(pharmacology) penicillin

isotope

pigment

(math.) coprime; relatively prime (having no common factor)

thrifty and plain

vegan

halogen (chemistry)

variant of 名宿[ming2 su4]

monosodium glutamate (MSG)

(adjective) lacto-vegetarian

grapheme

(literary) a one-foot-long piece of white silk, used for writing in ancient times; (as a metonym) letter; written message

carbamide; urea (NH2)2CO

usually; habitually; ordinarily; normally

variant of 情愫[qing2 su4]

chalone (protein inhibiting cell proliferation)

(physics) nuclide

(chemistry) saponin

plain; ordinary; vegan; vegetarian

white silk mourning dress

alizarin

to eat a vegetarian diet

meat and vegetable

one's true heart

morpheme

morpheme

(high) quality

casein (milk protein)

enzyme

(pharmacology) -mycin (suffix)

phoneme

melanin; black pigment

(adjective) non-Buddhist vegetarian (allowing strong-smelling vegetables like garlic and onions)

pheromone

oxytocin