one-piece
— Tillægsord
– Engelsk
～ (of clothing) consisting of or fashioned in a single whole piece; "a one-piece garment"
oral contraceptive pill
— Navneord
– Engelsk
～ a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception
Oregon pine
— Navneord
– Engelsk
～ lofty douglas fir of northwestern North America having short needles and egg-shaped cones
odd-pinnate leaf
— Navneord
– Engelsk
～ a pinnate leaf with a single leaflet at the apex
odd-pinnate
— Tillægsord
– Engelsk
～ (a leaf shape) pinnate with a single leaflet at the apex
organ pipe
— Navneord
– Engelsk
～ the flues and stops on a pipe organ
oil pipeline
— Navneord
– Engelsk
～ a pipeline used to transport oil
order Piperales
— Navneord
– Engelsk
～ Piperaceae; Saururaceae; Chloranthaceae
os pisiforme
— Navneord
– Engelsk
～ a small wrist bone that articulates only with the triquetral
orchestra pit
— Navneord
– Engelsk
～ lowered area in front of a stage where an orchestra accompanies the performers
overhand pitch
— Navneord
– Engelsk
～ a baseball pitch in which the hand moves above the shoulder
out of place
— Tillægsord
– Engelsk
～ of an inappropriate or misapplied nature
out of place
— Biord
– Engelsk
～ in a setting where one is or feels inappropriate or incongruous; "he felt out of place in the lingerie shop"
open-plan
— Tillægsord
– Engelsk
～ (of rooms or buildings) having large rooms with few dividing partitions
openside plane
— Navneord
– Engelsk
～ a woodworking plane designed to cut rabbets
oriental plane
— Navneord
– Engelsk
～ large tree of southeastern Europe to Asia Minor
orbital plane
— Navneord
– Engelsk
～ (astronomy) the plane on which a body is orbiting
outer planet
— Navneord
– Engelsk
～ (astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)
ovulation method of family planning
— Navneord
– Engelsk
～ natural family planning in which the fertile period is inferred from changes in the character and quantity of cervical mucus; ovulation is marked by an increase in mucus that becomes sticky and then clearer and slippery