a constituent element or influence that contributes to a result or outcome

the inherent or innate physical and psychological makeup or essence of an individual

a substance consisting of atoms that all have the same number of protons

an essential factor or key constituent of a system, process, or situation

a poisonous substance, especially one produced by a living organism

pigment; coloring matter

source material (in literature and art)

The level of knowledge, skill, or character acquired through long-term study, practice, or self-cultivation.

simple and unadorned in appearance or style

carbamide, a chemical compound (NH2)2CO found in mammals' urine and used industrially as a nitrogen-rich fertilizer

trace element (chemistry)

food consisting of vegetables and other non-meat products

having received systematic and thorough training; well-trained.

a dark biological pigment occurring in the skin, hair, and eyes of humans and animals

to be a vegetarian

consistently; always (in the past and now)

Bertrand Russell (1872-1970), British logician, rationalist philosopher and pacifist; the surname Russell

to continue in one's own way regardless of others' opinions

(pharmacology) erythromycin

(pharmacology) gentamicin

(physics) nuclide

a broad-spectrum antibiotic (chloramphenicol)

to be total strangers

ordinarily, habitually, or in normal times

vegetable dish; vegetarian food

simple yet elegant

male sex hormone, such as testosterone, that promotes the development and maintenance of male characteristics

the face of a woman without any makeup applied