adj

• (archaic or literary, poetic) Without moisture; dry.
  "The autumn winds rushing / Waft the leaves that are searest, / But our flower was in flushing, / When blighting was nearest."
• (archaic or literary, poetic) Of thoughts, etc.: barren, fruitless.
  "Our talk had been serious and sober, But our thoughts they were palsied and sere— Our memories were treacherous and sere—"
• (obsolete) Of fabrics: threadbare, worn out.
  "The roaring wind! it roar'd far off, / It did not come anear; / But with its sound it shook the sails / That were so thin and sere."

noun

• (ecology) A natural succession of animal or plant communities in an ecosystem, especially a series of communities succeeding one another from the time a habitat is unoccupied to the point when a climax community is achieved.
  "We examined one of several seres found in the middle Rocky Mountains that progress from a subalpine or montane forb-dominated meadow to a climax forest dominated by Engelmann spruce (Picea engelmannii)."

noun

• (obsolete) A claw, a talon.
  "Her [Minerva's] seres struck through Achilles' tent, and closely she instill'd / Heaven's most-to-be-desired feast to his great breast, and fill'd / His sinews with that sweet supply, for fear unsavoury fast / Should creep into his knees."

adj

• (obsolete or British, dialectal) Individual, separate, set apart.
  "Therefore I have ſeene good ſhooters [archers] which would have for everye bowe a ſere caſe, made of wullen clothe, and then you maye putte three or four of them ſo caſed, into a lether caſe if you will."
• (obsolete or British, dialectal) Different; diverse.
  "Thou wert well-nee moidered [footnote: Distracted.] wi' me, I know, but it thou'd telled me, Mary, I mun do better or else we mun goo our sere-ways [footnote: Different ways.], belike I should a done better. I'm nobbut a mon, Mary, a lundy day-tale mon [footnote: Clumsy day-labourer.]."