a rafter reinforcing a principal rafter.
a rafter reinforcing a diagonal member of a queen post truss.
- Auxiliary rotor
noun the tail rotor of a helicopter, used for directional and rotary control
- Auxiliary verb
a word used in construction with and preceding certain forms of other verbs, as infinitives or participles, to express distinctions of tense, aspect, mood, etc., as did in Did you go?, am in I am listening, have in We have spoken, or can in They can see. Historical Examples It is placed in the indicative […]
promoting lysis or increasing lytic action. auxilytic aux·i·lyt·ic (ôk’sə-lĭt’ĭk) adj. Increasing the effectiveness of a lysin; favoring lysis.
a class of substances that in minute amounts regulate or modify the growth of plants, especially root formation, bud growth, and fruit and leaf drop. noun any of various plant hormones, such as indoleacetic acid, that promote growth and control fruit and flower development. Synthetic auxins are widely used in agriculture and horticulture n. plant […]