[in-fruh-sound] /ˈɪn frəˌsaʊnd/
with frequencies below the audible range.
soundlike waves having a frequency below the audible range, that is, below about 16Hz
Sound whose wave frequency is too low (under 15-20 hertz) to be heard by humans. Some animals, such as elephants and whales, emit calls at infrasound frequencies. See Note at ultrasound.
[in-fruh-spi-sif-ik] /ˌɪn frə spɪˈsɪf ɪk/ adjective 1. of or relating to a subdivision of a species, as a subspecies, variety, or cultivar. /ˌɪnfrəspəˈsɪfɪk/ adjective 1. (biology) occurring within or affecting all members of a species: infraspecific variation infraspecific (ĭn’frə-spĭ-sĭf’ĭk) Occurring within a species; intraspecific.
- Infraspinatus bursa
infraspinatus bursa in·fras·pi·na·tus bursa (ĭn’frə-spī-nā’təs) n. The bursa between the tendon of the infraspinatus muscle and the capsule of the shoulder joint.
- Infraspinatus muscle
infraspinatus muscle n. A muscle with origin from the infraspinous fossa of the scapula, with insertion to the great tubercle of the humerus, with nerve supply from the suprascapular nerve, and whose action extends the arm and rotates it laterally.
[in-fruh-struhk-cher] /ˈɪn frəˌstrʌk tʃər/ noun 1. the basic, underlying framework or features of a system or organization. 2. the fundamental facilities and systems serving a country, city, or area, as transportation and communication systems, power plants, and schools. 3. the military installations of a country. /ˈɪnfrəˌstrʌktʃə/ noun 1. the basic structure of an organization, system, […]