a building in which plants can be grown on a large scale, under controlled conditions
1. petahertz. petahertz
[pahy] /paɪ/ noun, plural pis. 1. the 16th letter of the Greek alphabet (II, π). 2. the consonant sound represented by this letter. 3. Mathematics. [pahy] /paɪ/ noun, plural pies. 1. printing types mixed together indiscriminately. 2. any confused mixture; jumble. verb (used with object), pied, piing. 3. to reduce (printing types) to a state […]
1. Philippine Islands. 2. Also, PI, p.i. .
[pee-uh] /ˈpi ə/ noun 1. a female given name. pia pi·a (pī’ə, pē’ə) n. The pia mater. pi’al adj. 1. Greater Peoria Regional Airport 2. practicably irrigable acreage