entering group

entering group

[′en·tər·iŋ ‚grüp]
(organic chemistry)
An atom or group that becomes bonded to the main portion of the substrate during a chemical reaction.
References in periodicals archive ?
It was also a good day for Turkmenistan, who created history by entering Group III for the first time, while Hong Kong all but sealed a return to Group II.
The source added that the entering group included various age groups, many injured and patients who were provided by urgent humanitarian aid and transported them to the prepared camps.
Anybody can find them out by entering Group in the Cultivar name field and press 'Search'
For users that consistently collaborate with the same people, group support eliminates the process of entering group members one at a time.
We have taken the first step of entering Group III, and now we have to ensure we stay back in the group.