| OBITAL | • obital adj. Of or relating to an obit. • OBITAL adj. relating to an obit, a religious office for a dead person, also OBITUAL.
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| CUBITAL | • cubital adj. (Anatomy) Of or pertaining to the cubit or ulna. • cubital adj. (Entomology) Of or pertaining to the cubitus and/or the areas of the wing next to it.
 • cubital adj. Measured in cubits.
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| ORBITAL | • orbital adj. Of or relating to, or forming an orbit (such as the orbit of a moon, planet, or spacecraft). • orbital adj. (Anatomy) Of or relating to the eye socket (eyehole).
 • orbital adj. (Chiefly UK) (of roads, railways) Passing around the outside of an urban area.
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| BARBITAL | • barbital n. The first commercially marketed barbiturate, used as a hypnotic drug until the mid-1950s. • BARBITAL n. (US) a derivative of barbituric acid used as a sedative, also BARBITONE.
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| DECUBITAL | • decubital adj. (Medicine) In a decubitus position: lying down; thus… • decubital adj. (Medicine, dated) Relating to a pressure ulcer (a decubitus ulcer, that is, a bedsore).
 • DECUBITAL adj. in a lying down position.
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| CUCURBITAL | • cucurbital adj. Cucurbitaceous. • CUCURBITAL adj. of or like a cucurbit.
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| SUBORBITAL | • suborbital adj. Not reaching orbit; having a trajectory that does not reach orbital velocity and so must return to ground eventually. • suborbital adj. (Anatomy) Below the orbit of the eye.
 • suborbital n. (Anatomy) A suborbital bone.
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| AMOBARBITAL | • amobarbital n. (Pharmacology) A barbiturate administered especially in the form of its sodium salt C11H17N2NaO3 as… • AMOBARBITAL n. a white crystalline powder used as a sedative.
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| ANTEORBITAL | • anteorbital adj. (Astronautics) Referring to the period before orbit is achieved. • anteorbital adj. (Anatomy) Situated in front of the eyes.
 • ANTEORBITAL adj. situated in front of the eyes.
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| POSTORBITAL | • postorbital adj. Behind the orbit of the eye. • postorbital n. A postorbital bone or scale.
 • POSTORBITAL adj. situated behind the eye.
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| HEXOBARBITAL | • hexobarbital n. (Pharmacology) A barbiturate derivative with hypnotic and sedative effects, formerly used to induce… • HEXOBARBITAL n. a barbiturate used as a sedative and hypnotic.
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| INFRAORBITAL | • infraorbital adj. (Anatomy, relational) Below the orbit of the eye. • infraorbital n. (Anatomy) Ellipsis of infraorbital bone..
 • INFRAORBITAL adj. situated below the orbit of the eye.
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| INTERORBITAL | • interorbital adj. Between orbitals. • interorbital adj. Between orbits.
 • interorbital n. (Zoology) Any of the scales between the orbits.
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| SECOBARBITAL | • secobarbital n. (Pharmacology) A barbiturate C12H18N2O3 that is used chiefly in the form of its bitter hygroscopic sodium… • SECOBARBITAL n. a barbiturate used chiefly as a hypnotic and sedative.
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| SUPRAORBITAL | • supraorbital adj. (Anatomy) Located immediately above the eye sockets, where in humans the eyebrows are located. • supraorbital n. An ossification above the eye sockets.
 • SUPRAORBITAL adj. situated above the eye socket.
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| PENTABARBITAL | • PENTABARBITAL n. a barbiturate drug with hypnotic, sedative, and anticonvulsant effects, also PENTOBARBITAL. | 
| PENTOBARBITAL | • pentobarbital n. (Pharmacology) A narcotic and sedative barbiturate drug (trademark Nembutal) formerly used to relieve insomnia. • PENTOBARBITAL n. a barbiturate drug with hypnotic, sedative, and anticonvulsant effects, also PENTABARBITAL.
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| PHENOBARBITAL | • phenobarbital n. (Pharmacology) A narcotic and sedative barbiturate drug used chiefly to treat epilepsy. • PHENOBARBITAL n. a crystalline barbiturate used as a hypnotic, sedative, and anticonvulsant.
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