Webster's Dictionary 1806

541

Orthogonal

Orthogonala.rightangled, rectangular

542

Orthographer

Orthographern.one who spells grammatically

543

Orthographical

Orthographicala.rightly spelled, rightly drawn

544

Orthographically

Orthographicallyad.according to rule, truly, exactly

545

Orthography

Orthographyn.right spelling or writing

546

Ortive

Ortivea.rising as a planet or star, easterly

547

Ortolan

Ortolann.a small but very delicate bird

548

Oscillation

Oscillationn.the vibration of a pendulum

549

Oscillatory

Oscillatorya.moving like a pendulum, waving

550

Oscitancy

Oscitancy, or Oscitationn.a yawning, carelessness

551

Oscitant

Oscitanta.yawning, sleepy, sluggish, heavy, dull

552

Osculation

Osculationn.the act of kissing, a close contract

553

Osculatory

Osculatorya.pertaining to kissing or contact

554

Osier

Osier, or Oziern.a tree of the willow kind

555

Osmund

Osmundn.a plant, the flowering fern

556

Ospray

Osprayn.a species of eagle

557

Osseous

Osseousa.bony, like or made of bone, stony

558

Ossicle

Ossiclen.a small or little bone, a stone of fruit

559

Ossific

Ossifica.making or converting to bone

560

Ossification

Ossificationn.the act of changing to bone

561

Ossifrage

Ossifragen.a strong fierce kind of eagle

562

Ossify

Ossifyv.to change, burn or harden into bone

563

Ossivorous

Ossivorousa.devouring or swallowing bones

564

Ossuary

Ossuaryn.a place kept for the bones of the dead

565

Ostensible

Ostensiblea.that may be shown, apparent, seeming

566

Ostensibly

Ostensiblyad.apparently, seemingly

567

Ostensive

Ostensivea.tending to show, betokening