> as lemmas
photoneutral
photoneutral adj.
Brit. 
/ˌfəʊtə(ʊ)ˈnjuːtr(ə)l/
, /ˌfəʊtə(ʊ)ˈnjuːtr(ə)l/U.S. /ˌfoʊdoʊˈn(j)utrəl/
unaffected in some respect by light./ˌfoʊdoʊˈn(j)utrəl/ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [adjective] > unaffected by
insensitive1871
photoneutral1950
1950 O. F. Curtis & D. G. Clark Introd. Plant Physiol. xx. 630 Some plants are evidently highly indifferent to the photoperiod with respect to their flowering behavior and will flower over almost any photoperiod ranging from a 5-hr daily exposure to a 24-hr, or continuous, exposure. Some of the plants that fall into this indeterminate, or photoneutral, group are buckwheat, sunflower, tomato, cotton, and dandelion.
1995 Jrnl. Neurogenetics 10 119 The transition from negative phototaxis toward photoneutral behavior characteristic of the wandering third instar larva.
<
as lemmas