| phytologist | One skilled in phytology; a writer on plants; a botanist. Source: Websters Dictionary (01 Mar 1998) |
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| phytology | <study> The science of plants; a description of the kinds and properties of plants; botany. Origin: Phyto-: cf. F. Phytologie. Source: Websters Dictionary (01 Mar 1998) |
| Phytomastigina | Former term for plant-like flagellates, originally classified as a suborder or order, raised to the class Phytomastigophorea (Phytomastigophorasida) in recent classifications. Origin: phyto-+ G. Mastix, whip (05 Mar 2000) |
| Phytomastigophorasida | A class of protozoa consisting of plantlike flagellates. Its organisms are free-living and have one or two flagella. (12 Dec 1998) |
| phytomastigophorea | A class of protozoa consisting of plantlike flagellates. Its organisms are free-living and have one or two flagella. (12 Dec 1998) |
| phytomenadione | Vitamin K1 or K1(20); 2-methyl-3-phytyl-1,4-naphthoquinone; 3-phytylmenaquinone; isolated from alfalfa;also prepared synthetically; major form of vitamin K found in plants. Synonym: phytomenadione, phytonadione, vitamin K1, vitamin K1(20). (05 Mar 2000) |
| phytomeron | <botany> An organic element of a flowering plant; a phyton. Origin: NL. Phytomeron, fr. Gr. Plant + share. Source: Websters Dictionary (01 Mar 1998) |
| phytomitogen | A mitogenic lectin causing lymphocyte transformation accompanied by mitotic proliferation of the resulting blast cells identical to that produced by antigenic stimulation; e.g., phytohemagglutinin, concanavalin A. (05 Mar 2000) |
| phyton | Origin: NL, fr. Gr. Plant. <botany> One of the parts which by their repetition make up a flowering plant, each being a single joint of a stem with its leaf or leaves; a phytomer. Source: Websters Dictionary (01 Mar 1998) |
| phytonadione | <chemical> 2-methyl-3-(3,7,11,15-tetramethyl-2-hexadecenyl)-1,4-naphthalenedione. A fat-soluble vitamin occurring naturally as the trans-isomer. It is used in the treatment of prothrombinaemias. Pharmacological action: antifibrinolytic agent. Chemical name: 1,4-Naphthalenedione, 2-methyl-3-(3,7,11,15-tetramethyl-2-hexadecenyl)-, (R-(R*,R*-(E)))- (12 Dec 1998) |
| phytonomy | The science of the origin and growth of plants. Origin: Phyto- + Gr. Law: cf. F. Phytonomie. Source: Websters Dictionary (01 Mar 1998) |
| phytopathologist | One skilled in diseases of plants. Source: Websters Dictionary (01 Mar 1998) |
| phytopathology | <study> The science of diseases to which plants are liable. Origin: Phyto- + pathology. Source: Websters Dictionary (01 Mar 1998) |
| phytophaga | <zoology> A division of Hymenoptera; the sawflies. Origin: NL, fr. Gr. A plant + to eat. Source: Websters Dictionary (01 Mar 1998) |
| phytophagic | <zoology> Phytophagous. Source: Websters Dictionary (01 Mar 1998) |