Strain

cepa

(particular variety of microbe, organism etc.)

contusão

(injury resulting from violent effort)

distensão

(violent effort, excessive and hurtful exertion or tension, as of the muscles)

estirpe

(particular variety of microbe, organism etc.)

feição

(hereditary character, quality, or disposition)

linhagem

(race, lineage, pedigree)

coar

(to separate solid from liquid)

distender

(to stretch too far)