processus zygomaticus ossis frontalis |
The massive projection of the frontal bone that joins the zygomatic bone to form the lateral margin of the orbit. Synonym: processus zygomaticus ossis frontalis. (05 Mar 2000) |
|---|---|
processus zygomaticus ossis temporalis |
The anterior process of the temporal bone that articulates with the temporal process of the zygomatic bone to form the zygomatic arch. Synonym: processus zygomaticus ossis temporalis. (05 Mar 2000) |
procetofen |
<chemical> 2-(4-(4-chlorobenzoyl)phenoxy)-2-methylpropionic acid-1-methylethyl ester. An antilipaemic agent which reduces both cholesterol and triglycerides in the blood. Synonym: lf 178; lipantyl. Pharmacological action: antilipaemic agents. Chemical name: Propanoic acid, 2-(4-(4-chlorobenzoyl)phenoxy)-2-methyl-, 1-methylethyl ester (12 Dec 1998) |
prochilia |
Protruding lips. Origin: pro-+ G. Cheilos, lip (05 Mar 2000) |
prochilon |
The slight projection on the free edge of the centre of the upper lip at the lower extent of the philtrum. Synonym: tuberculum labii superioris, procheilon, prochilon, tubercle of upper lip. (05 Mar 2000) |
prochiral |
Refers to an atom in a molecule (usually a carbon atom) that would become chiral if one of two identical substituents is replaced by a new ligand; i.e., an atom that has two enantiotopic groups linked to it. For example, carbon-1 of ethanol is a prochiral carbon. (05 Mar 2000) |
prochirality |
The property of being prochiral. (05 Mar 2000) |
prochlorales |
An order of gram-negative oxygenic photosynthetic bacteria containing both chlorophylls a and b, but lacking phycobilins. There are two genera: prochloron and prochlorothrix. (12 Dec 1998) |
prochloron |
A genus of prochlorales containing unicellular, spherical bacteria without a mucilaginous sheath. They are found almost exclusively as extracellular symbionts of colonial ascidians on subtropical or tropical marine shores. (12 Dec 1998) |
prochlorophyte |
A prokaryotic oxygenic phototroph that contains chlorophylls a and b but which lack phycobilins. (09 Oct 1997) |
prochlorothrix |
A genus of prochlorales occurring in unbranched chains of indefinite length and containing both chlorophylls a and b. (12 Dec 1998) |
prochlorperazine |
<chemical> A phenothiazine antipsychotic used principally in the treatment of nausea, vomiting, and vertigo. It is more likely than chlorpromazine to cause extrapyramidal disorders. Pharmacological action: antiemetics, antipsychotic agents, phenothiazine, dopamine antagonists. Chemical name: 10H-Phenothiazine, 2-chloro-10-(3-(4-methyl-1-piperazinyl)propyl)- (12 Dec 1998) |
prochondral |
Denoting a developmental stage prior to the formation of cartilage. Origin: pro-+ G. Chondros, cartilage (05 Mar 2000) |
prochordal |
<anatomy> Situated in front of the notochord; applied especially to parts of the cartilaginous rudiments in the base of the skull. Origin: Pref. Pro + chordal. Source: Websters Dictionary (01 Mar 1998) |
prochordal plate |
A small area immediately rostral to the cephalic tip of the notochord where ectoderm and endoderm are in contact; when turned under the growing head, it forms the pharyngeal membrane. See: oral plate. Synonym: prechordal plate. (05 Mar 2000) |