strain

(archaic) Race; lineage, pedigree.

(biology) A particular variety of a microbe, virus, or other organism, usually a taxonomically infraspecific one.

(figuratively) Hereditary character, quality, tendency, or disposition.

(music, poetry) Any sustained note or movement; a song; a distinct portion of an ode or other poem; also, the pervading note, or burden, of a song, poem, etc.

Language that is eloquent, poetic, or otherwise heightened.

(rare) A kind or sort (of person etc.).

(obsolete) Treasure.

(obsolete) The blood-vessel in the yolk of an egg.