(n) the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life, Syn.space biology, astrobiology
(adj) not fulfilling the same grammatical role of any of its constituents, Ant.endocentric, Example: when `until last Easter' serves as an adverb it is an exocentric construction
{ } a. [ Exo- + Gr. kardi`a heart. ] (Anat.) Situated or arising outside of the heart; as, exocardial murmurs; -- opposed to endocardiac. [ 1913 Webster ]
n. [ Exo- + Gr. &unr_; fruit. ] (Bot.) The outer portion of a fruit, as the flesh of a peach or the rind of an orange. See Illust. of Drupe. [ 1913 Webster ]
a. [ Pref. ex- + occipital. ] (Anat.) Pertaining to a bone or region on each side of the great foremen of the skull. -- n. The exoccipital bone, which often forms a part of the occipital in the adult, but is usually distinct in the young.
‖‖, n. [ NL. exocetus, L. exocoetus a fish that sleeps on the shore, Gr. 'exw`koitos, lit., sleeping out; 'e`xw outside of + koi`th bed. ] (Zoöl.) A genus of fishes, including the common flying fishes. See Flying fish. [ 1913 Webster ]
pos>n. [ L. exodium, Gr. &unr_; (sc. &unr_; song) fr. &unr_; belonging to an exit, or to the finale of a tragedy, fr. &unr_;: cf. F. exode. See Exodus. ] 1. Departure; exodus; esp., the exodus of the Israelites from Egypt. [ Obs. ] L. Coleman. Bolingbroke. [ 1913 Webster ]
2. (Gr. Drama) The final chorus; the catastrophe. [ 1913 Webster ]
3. (Rom. Antiq.) An afterpiece of a comic description, either a farce or a travesty. [ 1913 Webster ]
a. [ Gr. &unr_; belonging to departure. See Exodus. ] (Physiol.) Conducting influences from the spinal cord outward; -- said of the motor or efferent nerves. Opposed to esodic. [ 1913 Webster ]
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